Greg Tiernan
Greg Tiernan
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Gregory Tiernan (born June 19, 1965) is an Irish-born Canadian-based animator, director and voice artist. Along with his wife Nicole Stinn, he founded Nitrogen Studios Canada, Inc. in 2003, through which he introduced CGI to the Thomas the Tank Engine & Friends franchise.[1] Prior to this, Tiernan collaborated on various projects with filmmaker Don Bluth, Walt Disney Animation Studios and Klasky Csupo, Inc. Nitrogen Studios was purchased by Cinesite and he now works for them.

Key Information

Tiernan made his feature film debut with the long-gestating R-rated animated film Sausage Party (2016), joining Conrad Vernon to direct production of a story conceived by Seth Rogen, Evan Goldberg and Jonah Hill.[2][3]

Career

[edit]

Tiernan was trained in traditional animation for feature film in his native Ireland, at Don Bluth's now-defunct Dublin-based Sullivan Bluth Studios. There, he worked with Bluth in various capacities on the films An American Tail (1986), The Land Before Time (1988) and All Dogs Go to Heaven (1989). Tiernan later worked on one episode of the British children's animated series Danger Mouse for Cosgrove Hall, several episodes of Garfield & Friends, the 1983 animated series of the comic series Lucky Luke, Ralph Bakshi's live action and animation mixed feature film Cool World (1992) and two animated feature films from Germany Der kleene Punker (1992) and Felidae (1994) which was later released on YouTube premieres on 7 August 2013 in the USA, UK, Canada and any of countries lot of views in audiences for older teens and up. Soon after, he moved to Los Angeles and became a sequence director for Klasky Csupo. In addition to working on several episodes of Rugrats and The Wild Thornberrys, he made sequence contributions to the feature film spin-offs of both programs.

Tiernan's Hollywood years also saw him work extensively with Disney. His first projects included several titles in the company's PC games library, including projects associated with Disney's Aladdin (1992), The Lion King (1994), Hercules (1997) and Tarzan (1999). Also through Disney, he contributed storyboards to Mr. Magoo (1997), one of his few live-action projects.

After serving as an additional animator on The Tigger Movie (2000), Tiernan moved to Vancouver and founded Nitrogen Studios. Through this new venture, he helped develop God of War (2005), the first entry in the renowned PlayStation game series and the animated film Happily N'Ever After (2006). He joined the family of artists behind the Thomas & Friends franchise when he directed the home video feature Hero of the Rails (2009). This title became the first Thomas project to shelve the historical live-action animation technique in favor of CGI; all subsequent projects have been animated thus. Along with helming various additional home videos, Tiernan served as series director for Thomas & Friends from Series 13 to Series 16 and the other three films Misty Island Rescue (2010), Day of the Diesels (2011) and Blue Mountain Mystery (2012). Tiernan was also the CGI unit director for Series 12. He was also a huge fan of The Rev. W. Awdry's original Railway Series books and owns both The Island of Sodor: Its People, History and Railways and Sodor: Reading Between the Lines.

Tiernan also worked on several film projects when not working at Disney or Nitrogen or with Don Bluth, including Roxy Hunter, Bionicle 2: Legends of Metru Nui and four Peanuts specials.

Tiernan gained new acclaim following the 2016 release of his feature film debut, Sausage Party (in which he also voiced a potato and a noodle soup can).

Tiernan also directed the CGI-animated version of The Addams Family (2019) and its sequel The Addams Family 2 (2021).

Allegations of mistreatment

[edit]

Several days after the release of Sausage Party, allegations of poor treatment of Nitrogen Studios employees surfaced in the comments section of an interview with Tiernan and co-director Conrad Vernon, featured on the website Cartoon Brew.[4] Various anonymous comments, from individuals purporting to be animators who worked on the film in question, made claims including that Nitrogen forced them to work overtime for free and that some employees were threatened with termination. One individual stated that Tiernan had developed a reputation for "disturbing behaviour and abusive management style".[5] Publications such as the Washington Post,[6] the Los Angeles Times,[7] Dorkly[8] and /Film[9] later picked up the story.

Filmography

[edit]

Feature films

[edit]
Year Title Notes
2016 Sausage Party Co-director (with Conrad Vernon)
2019 The Addams Family Co-director (with Conrad Vernon)
2021 The Addams Family 2 Co-director (with Conrad Vernon)

Direct-to-video and television films/specials

[edit]
Year Title Notes
2009 Thomas & Friends: Hero of the Rails
2010 Thomas & Friends: Misty Island Rescue
2011 Thomas & Friends: Day of the Diesels
2012 Thomas & Friends: Blue Mountain Mystery

Television

[edit]
Year Title Notes
2008–2012 Thomas & Friends Series director (Seasons 13–16, approx. 100+ episodes), also unit director on Season 12 CGI segments
2013–2017 Thomas & Friends: Clips (UK) / various compilation series Director (uncredited, approx. 29 episodes/clips)
2015 Thomas & Friends: YouTube Tour Director (10 episodes/web series)

Short films and web/other directing work (selected)

[edit]
Year Title Notes
2010–2012 Various Thomas & Friends promotional shorts and mini-episodes Including "Thomas and the Sounds of Sodor", "Percy and the Calliope", "Happy Birthday Sir!", "Percy and the Monster of Brendam", "Bust My Buffers!"
2010s Thomas & Friends web clips and compilations (e.g. "The Best of Thomas & Friends Clips (US)") Director on numerous short-form content pieces (over 100 in some aggregated credits)
2016 Sausage Party – additional voice work Voice of Noodle Soup/Potato (uncredited cameo)
Various Other Nitrogen Studios shorts, commercials, and animation supervision Limited public credits, primarily animation oversight and production roles rather than solo directing

References

[edit]
[edit]
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Greg Tiernan

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Gregory Tiernan (born 19 June 1965) is an Irish-born Canadian animator, director, and studio executive known for his contributions to both children's television animation and adult-oriented feature films.[1][2] Tiernan co-founded Nitrogen Studios in Vancouver with his wife Nicole Stinn, serving as its Chief Creative Officer, where the company specialized in visual effects and animation for projects including Thomas & Friends.[3][4] He directed seasons 12 through 16 of Thomas & Friends from 2009 to 2012, overseeing the transition to full CGI animation, and contributed to earlier films like An American Tail (1986) and All Dogs Go to Heaven (1989) as an animator.[5][1] His feature directing credits include co-directing the R-rated comedy Sausage Party (2016) with Conrad Vernon, which grossed over $140 million worldwide despite its niche appeal, and leading the animated reboot The Addams Family (2019) and its sequel.[1][6] Tiernan's professional reputation has been marked by a 2016 controversy during Sausage Party's production at Nitrogen Studios, where anonymous animators alleged demands for unpaid overtime, threats of blacklisting for complaints, and omission from credits, prompting a union complaint to Canadian authorities.[7][8] In 2019, the British Columbia Employment Standards Branch ruled in favor of the claimants, awarding back overtime pay to workers who had left the project early, though Nitrogen Studios disputed the claims and emphasized its overall labor practices.[9][7]

Early life and education

Upbringing and family background

Greg Tiernan was born on 19 June 1965 in Dublin, Ireland.[10][3] Public records provide no further details on his parents, siblings, or early childhood experiences in Ireland. He is married to animator Nicole Stinn, a longtime collaborator who co-founded Nitrogen Studios with him in 2003.[2] Tiernan's transition to a Canadian base occurred later in his career, reflecting professional opportunities in animation rather than documented family relocations during his youth.[4]

Formal training in animation

Tiernan's formal training in animation occurred at Sullivan Bluth Studios in Dublin, Ireland, where he apprenticed under Don Bluth beginning in the mid-1980s. This studio, established by Bluth in 1985 as a European outpost for his independent animation efforts following his departure from Disney, specialized in traditional cel animation for feature films. Tiernan contributed as an animator on key productions there, including An American Tail (1986), where he assisted in character animation and inbetweening, and All Dogs Go to Heaven (1989), gaining hands-on experience in storyboarding, layout, and the full pipeline of 2D feature animation.[1][11] The studio's rigorous environment emphasized classical principles of animation, such as squash-and-stretch, timing, and appeal, drawing from Bluth's Disney-honed techniques adapted for independent output. Tiernan's role involved practical immersion rather than theoretical coursework, aligning with the era's industry norm for many animators who entered via studio apprenticeships amid limited formal programs. No records indicate attendance at a university animation program; his expertise developed through direct collaboration on high-stakes projects, totaling over a decade in traditional methods before transitioning to digital workflows.[4][12]

Professional career

Entry into the animation industry

Tiernan entered the animation industry in the mid-1980s through Sullivan Bluth Studios in Dublin, Ireland, Don Bluth's European production facility established in 1985 to support feature film animation. There, he trained in traditional cel animation techniques and contributed to key projects, including An American Tail (1986) and The Land Before Time (1988), for which he is credited as a rough breakdown assistant responsible for breaking down character poses into key components for inbetweeners.[1] His early roles emphasized foundational skills in character animation and layout under Bluth's supervision, during a period when the studio employed over 200 artists to handle outsourced work from Sullivan Bluth's American partners.[11] Following contributions to All Dogs Go to Heaven (1989) as an assistant animator—focusing on timing and spacing of movements for canine characters—Tiernan built experience amid the studio's peak output of four major features between 1986 and 1989.[1] The closure of Sullivan Bluth Studios in the early 1990s, amid financial challenges in the industry, prompted his transition to freelance and studio work in the United Kingdom, where he animated episodes of the series Danger Mouse (1981–1992 revival phases) and commercials for brands including Nike and Coca-Cola.[4] This phase marked his shift toward television and shorter-form content, leveraging Bluth-honed expertise in 2D hand-drawn techniques during what contemporaries described as a collaborative "golden age" of animation production.[11] By the early 1990s, Tiernan had expanded to U.S.-based projects, including assistant animation on Rugrats episodes at Klasky Csupo, reflecting the era's boom in cable television animation driven by networks like Nickelodeon.[4] His initial decade in the field, spanning roughly 1986 to the mid-1990s, established a reputation for reliable character work across theatrical and episodic formats, prior to his later supervisory roles in Europe, North America, and Germany.[11]

Work on children's television series

Tiernan directed the British children's television series Thomas & Friends during its transition to full computer-generated imagery (CGI), overseeing production of seasons 13 through 16 from 2009 to 2012.[3][1] He succeeded Stephen Asquith as director starting with season 13, which premiered on 3 October 2009 and featured 20 episodes focused on themes of teamwork and responsibility among the anthropomorphic trains on the Island of Sodor.[3][4] In season 14 (2010, 20 episodes), Tiernan continued directing, introducing story arcs involving new characters like Hiro, a Japanese engine, while maintaining the series' format of self-contained moral-driven narratives suitable for preschool audiences.[1] Season 15 (2011, 20 episodes) emphasized environmental messages and engine mishaps, with Tiernan coordinating CGI elements produced by his studio, Nitrogen Studios.[3] The final season under his direction, season 16 (2012, 20 episodes), explored magical elements and friendships, airing until 2012 when production shifted to Arc Productions and Tiernan was replaced by David Baas.[3][4] Prior to leading Thomas & Friends, Tiernan contributed animation to earlier children's media, though his primary television directing credits remain confined to this series, with no other major children's TV programs listed in his filmography.[1] His work on the show aligned with its global appeal, reaching over 120 million children worldwide by the early 2010s through broadcasts on networks like PBS Kids in the United States.[4]

Founding and operations of Nitrogen Studios

Nitrogen Studios Canada, Inc. was established in October 2003 by animator Greg Tiernan and his wife, producer Nicole Stinn, in Vancouver, British Columbia.[13][14] The studio operated as a full-service CGI animation facility, emphasizing character animation for theatrical feature films and television series.[15][16] Under Tiernan's role as chief creative officer and Stinn's as president and CEO, the company grew to employ around 70 staff members dedicated to creative and production tasks.[13][17] Operations centered on high-end animation production, leveraging Vancouver's animation talent pool to deliver CGI content for international clients, including contributions to series like Thomas & Friends beginning in 2008.[15] In March 2017, Nitrogen Studios was acquired by the British visual effects and animation firm Cinesite for an undisclosed amount, after which it functioned as Cinesite's Vancouver division, expanding the parent's capabilities in feature animation.[13] This integration marked the end of independent operations but preserved the studio's focus on CGI character work within a larger corporate structure.[18]

Directing feature-length films

Tiernan directed three direct-to-video feature-length specials for the Thomas & Friends franchise during his tenure at Nitrogen Studios: Hero of the Rails (2009, 60 minutes), introducing new characters and CGI elements; Day of the Diesels (2011, 72 minutes), focusing on diesel engine themes; and Blue Mountain Mystery (2012, 60 minutes), centered on a mining adventure plot.[1] These productions utilized Nitrogen's CGI animation pipeline, transitioning the series from traditional models to digital formats under Tiernan's oversight.[3] Tiernan made his theatrical feature directorial debut with Sausage Party (2016), co-directed with Conrad Vernon, an R-rated animated comedy about anthropomorphic grocery products discovering existential truths.[19] Vernon recruited Tiernan to helm production at Nitrogen Studios in Vancouver, leveraging the studio's expertise from children's animation to achieve a high-quality look on a reported budget of around $20 million, despite initial industry skepticism toward adult-oriented animation.[20] The film emphasized live-action-inspired pacing and character dynamics, with Tiernan contributing to refining dual-perspective storytelling between sentient foods and human shoppers; it premiered at South by Southwest on March 11, 2016, before wide release on August 12, 2016.[20][19] Tiernan reunited with Vernon to co-direct The Addams Family (2019), a family-oriented animated adaptation updating Charles Addams' characters for modern audiences with themes of outsider acceptance.[21] The film grossed over $200 million worldwide against a $40 million budget, prompting a sequel, The Addams Family 2 (2021), where Tiernan shared directing credits with Vernon, Laura Brousseau, and Kevin Pavlovic, exploring family road trip dynamics amid paternity doubts.[22] Both projects built on the directors' prior collaboration, prioritizing visual style and humor suited to animation's flexibility.[23]

Controversies and disputes

Allegations during Sausage Party production

During the production of the 2016 animated film Sausage Party, co-directed by Greg Tiernan, animators employed by his company Nitrogen Studios in Vancouver alleged widespread mistreatment, including demands for unpaid overtime and an atmosphere of intimidation.[24][7] These claims emerged publicly in mid-August 2016, shortly after the film's theatrical release on August 12, following anonymous posts on online forums such as Reddit, where over 30 animators detailed experiences of working 12- to 14-hour days without compensation for hours exceeding standard limits under British Columbia labor laws.[25][26] Animators specifically accused Tiernan of pressuring staff to forgo overtime pay to keep the film's $19 million budget low, with one self-identified "uncredited supervisor" stating that Tiernan "would demand people work overtime for free" and that refusal led to threats of termination or exclusion from end credits.[27][28] Reports described tactics such as supervisors monitoring personal email for complaints, sudden firings of dissenters, and a culture where junior artists feared reprisal, contributing to high turnover during the film's post-production crunch in 2015-2016.[25][29] Multiple accounts claimed that dozens of contributors were deliberately omitted from the film's credits despite contractual entitlements, exacerbating grievances over uncompensated labor estimated to total thousands of unpaid hours across the team.[7][24] In response to these allegations, the Animation Guild and local Vancouver union representatives, including those affiliated with the BC Council of Film Unions, filed formal complaints with Canadian labor authorities on behalf of affected workers, seeking investigations into violations of the Employment Standards Act regarding overtime rates (typically 1.5 times regular pay after 8 hours daily or 40 weekly).[8] The complaints highlighted Nitrogen Studios' non-union status as a factor enabling such practices, contrasting with industry norms where unionized productions enforce stricter pay and credit protections.[24] While the animators' accounts remained anonymous to avoid legal risks, their consistency across outlets underscored systemic issues in low-budget animation outsourcing, though Nitrogen Studios disputed the claims as exaggerated by a vocal minority.[25][7]

Studio responses and legal resolutions

Nitrogen Studios, the Vancouver-based animation company co-founded by Tiernan, issued a statement denying the animators' allegations of unpaid overtime and mistreatment, asserting that the production had complied with all applicable labor laws, regulations, and contractual obligations.[30] The studio, through President and CEO Nicole Stinn, claimed that animators had been paid for all overtime worked, with some individuals receiving over $100,000 in such compensation, and emphasized providing a supportive work environment including health benefits and fair pay.[24] In response to a December 2015 letter from approximately 30 animators detailing "unfair pressure tactics," Nitrogen reportedly asked signatories whether they wished to remove their names, a move that some described as intimidating but which the studio framed as an opportunity for direct resolution of concerns.[24] [31] Following public complaints in August 2016, the Animation Guild and allied unions, including Unifor, filed a formal complaint with the British Columbia Employment Standards Branch on behalf of non-unionized animators, alleging violations of overtime pay requirements under the province's Employment Standards Act.[32] [33] Nitrogen contested the claims, arguing exemption as a "high technology company" under section 37.8 of the Act's regulations, which purportedly applied to its animators as specialized professionals not requiring overtime.[34] [35] In a December 6, 2018, determination, the Branch's delegate rejected Nitrogen's exemption argument, ruling that the animators' roles did not qualify as exempt high-tech positions and ordering the studio to pay outstanding overtime wages to affected employees.[36] [37] The decision, upheld in March 2019, also imposed administrative penalties on Nitrogen, including fines, and established a precedent for overtime eligibility in British Columbia's VFX and animation sector, requiring payment for hours exceeding 8 per day or 40 per week.[38] [39] No further appeals or disputes were reported, marking the resolution in favor of the animators after a nearly three-year process.[34]

Industry context and implications

The allegations against Nitrogen Studios during the 2016 production of Sausage Party exemplify longstanding labor challenges in the animation industry, particularly the prevalence of "crunch time" practices where artists are pressured to deliver extended unpaid hours to meet aggressive deadlines and budget constraints.[40] Independent animation studios, often operating on shoestring budgets compared to major live-action films—Sausage Party had a reported $19 million production cost—frequently outsource work to cost-effective hubs like Vancouver, Canada, relying on tax incentives and non-union or loosely regulated labor pools.[25] This model incentivizes cost-cutting measures, including demands for overtime without compensation, as animators reported in open letters citing threats of termination and an "atmosphere of fear" under studio leadership.[7] Such dynamics are not isolated; animation pipelines, involving iterative VFX and rigging tasks, routinely impose 60-80 hour weeks during final pushes, contributing to burnout rates estimated at over 50% in industry surveys of VFX workers.[8] These practices stem from causal pressures within the sector: studios compete globally against low-wage overseas competitors, while North American firms face thin margins on mid-tier projects, leading principals like directors-turned-producers to prioritize output over worker welfare to secure future contracts. In Tiernan's case at Nitrogen, animators alleged direct demands for free labor to maintain low overhead, a tactic echoed in broader critiques of founder-led studios where hierarchical control suppresses dissent.[24] Empirical data from Canadian employment standards investigations post-complaint revealed systemic underpayment, resulting in back-owed overtime awards to affected Vancouver artists, underscoring how regulatory oversight can enforce accountability when unions intervene.[8] However, resolution depended on anonymous whistleblowing amplified by media, highlighting vulnerabilities for contract-based animators lacking permanent status. The implications extend to heightened scrutiny on studio governance and director accountability, prompting unions like the Media Production Association to file formal complaints and advocate for standardized overtime enforcement in British Columbia's animation sector.[32] This case accelerated discussions on crunch reform, influencing guild pushes for contract clauses mandating paid overtime and rest periods, though adoption remains uneven due to project-based hiring. For independent directors like Tiernan, it illustrates reputational risks: while Nitrogen continued operations, public allegations tied to leadership eroded trust, potentially complicating talent recruitment in an industry already strained by high turnover—estimated at 20-30% annually in VFX/animation.[41] Ultimately, such disputes reinforce the need for empirical labor auditing over self-regulation, as unchecked cost-driven exploitation undermines creative sustainability without addressing root economic incentives.[40]

References

  1. Greg Tiernan - IMDb
  2. Greg Tiernan - TvSeans
  3. Greg Tiernan | Thomas the Tank Engine Wiki - Fandom
  4. Greg Tiernan - Sodor Island Fansite
  5. Greg Tiernan News & Biography - Empire
  6. Directors Conrad Vernon and Greg Tiernan Talk 'The Addams Family'
  7. 'Sausage Party' Animators Allege Studio Used Unpaid Overtime
  8. Union Files Complaint On Behalf of 'Sausage Party' Artists Over ...
  9. 'Sausage Party' Animators Win Major Lawsuit - ComicBook.com
  10. Greg Tiernan - Biography - IMDb
  11. The Future of Indie Animation Studios | Animation World Network
  12. Exclusive Trailer: New Documentary About Irish Animation Industry
  13. 'Sausage Party' Maker Nitrogen Studios Acquired by Cinesite
  14. Nitrogen Studios - Audiovisual Identity Database
  15. Nitrogen Studios - Crunchbase Company Profile & Funding
  16. Nitrogen Studios Canada Inc Information - RocketReach
  17. Nitrogen Studios Canada 2025 Company Profile - PitchBook
  18. Nitrogen Studios Archives - Cinesite
  19. Sausage Party (2016) - IMDb
  20. 'Sausage Party' Directors Conrad Vernon & Greg Tiernan On Making ...
  21. The Addams Family (2019) - IMDb
  22. The Addams Family 2 (2021) - IMDb
  23. Director Conrad Vernon Examines Origins Of 'The Addams Family'
  24. 'Sausage Party' Animators' Pay Dispute Surfaces After Big Opening
  25. Inside 'Sausage Party': Allegations of Forced Overtime ... - TheWrap
  26. Nitrogen studios massive mistreatment of employees on Sausage ...
  27. 'Sausage Party' hit by claims its animation team were 'mistreated'
  28. Sausage Party Production Accused of Mistreating Animators
  29. Sausage Party Animators Claim They Were Mistreated During ...
  30. Sausage Party director responds to allegations of forced work for free
  31. Sausage Party Animators Feud With Nitrogen Studios Over Pay ...
  32. Union files complaint against Vancouver Sausage Party animation ...
  33. Union wins overtime pay for non-union animators - Unifor
  34. Vancouver Animators Win Overtime Pay In 'Sausage ... - Cartoon Brew
  35. VFX Animators Awarded Overtime Pay: Decision Sets High BC Bar ...
  36. https://www.hollywoodreporter.com/news/general-news/canadian-union-prevails-sausage-party-animators-pay-dispute-1196832
  37. 'Sausage Party' Animators Win Overtime Pay from Nitrogen
  38. Animators win battle for overtime pay against Vancouver studio - CBC
  39. Province rules in favour of 'Sausage Party' animators over overtime ...
  40. 'Sausage Party' Animator Abuse Highlights Industry Issues - Inverse
  41. How the "Sausage Party" gets made: Why Seth Rogen's talking-food ...
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