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Kari Byron
Kari Byron
Kari Byron
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Kari Elizabeth Byron[1] (born December 18, 1974) is an American television host, best known for her role on the MythBusters and White Rabbit Project series.

Key Information

Byron was born in the Bay Area, California and graduated from San Francisco State University in 1998 with a Bachelor of Arts in film and sculpture. Byron was a cast member of MythBusters from 2005 to 2014 where she was part of "The Build Team". From 2010 to 2011, Byron hosted Head Rush, aimed at science education and teens, and Large, Dangerous Rocket Ships. From 2011 to 2014, she presented Punkin Chunkin on the Science Channel. She co-hosted Netflix's White Rabbit Project in 2016 and Crash Test World in 2019. Byron is also the co-founder of EXPLR Media, an education streaming service. Outside of television, Byron is an artist and author. She wrote a memoir titled Crash Test Girl in 2018.

Early life

[edit]

Byron was born in the Bay Area, California. She graduated from Los Gatos High School in Los Gatos, California, and studied at San Francisco State University, graduating in May 1998 with a Bachelor of Arts in film and sculpture.[2] She spent the following year backpacking, primarily in South Asia, and was involved in a number of art projects.[3]

Career

[edit]

MythBusters

[edit]
See also: List of MythBusters cast members
MythBusters Tory Belleci, Kari Byron, Jamie Hyneman, Grant Imahara, and Adam Savage in 2012

Byron was a cast member on MythBusters from 2004 to 2014. Along with fellow cast members Tory Belleci and Grant Imahara she was part of what is commonly referred to as "The Build Team" or B Team. This Build Team worked with Adam Savage and Jamie Hyneman to test the plausibility of various myths throughout their tenure with the show.[4] She and the others also hosted their own segments. She became involved in the show after persistently showing up at Hyneman's M5 Industries workshop in a desire to get hired by his company. She and the other Build Team members were given a more prominent role beginning with the show's second season. Not having had a long history in show business, Byron at first found it difficult to act naturally with this more visible position but gradually became more accustomed to it.[5]

During the second half of the 2009 season, Byron was on maternity leave and was temporarily replaced by Jessi Combs.[6] From 2010 to 2011, Byron had her own show, Head Rush, on the Science Channel, geared toward science education and teens.[7][8]

Byron has also hosted the 2010 and 2011 editions of Large, Dangerous Rocket Ships for the Science Channel. She and Belleci made a guest appearance on the October 3, 2012, episode of the Discovery series Sons of Guns. They test-fired some of the weapons in the Red Jacket shop and watched as the staff re-tested a myth previously busted by the Build Team: that a propane tank could explode if struck by a bullet. She left the show in 2014.

Byron and Belleci hosted coverage of Punkin Chunkin on the Science Channel from 2011 to 2014.[9] In 2015, Byron and Belleci hosted Thrill Factor, a new show for the Travel Channel.[10]

Looking back on her time on MythBusters, she says that she made lifelong connections with the cast and crew. Specifically, she said, "I made family with these people, I take them everywhere I go."[11]

White Rabbit Project

[edit]

Byron, along with Imahara and Belleci, hosted the Netflix production White Rabbit Project,[12] released on Netflix on December 9, 2016. The series focused on unusual aspects from history and pop culture.[13]

Crash Test World

[edit]
Byron during filming for Crash Test World in Hudson Yards, Manhattan

Byron became host of the series Crash Test World.[14] The six-episode series aired on Science Channel starting January 8, 2021.[15][16][17]

EXPLR Media

[edit]

Byron is currently the co-founder of EXPLR Media, an education streaming service.[18][19][20] "I want our audience to be able to look at every show that we do and find somebody that looks like them."[21]

Personal life

[edit]

Byron married artist Paul Urich in March 2006. They have a daughter, Stella Ruby, born on June 28, 2009.[22][23] On June 26, 2019, Byron petitioned for separation from Urich and their marriage was dissolved on March 20, 2020.[24]

She was previously a vegetarian, later identified as a pescatarian in a 2011 interview,[25] and in a 2025 episode of the Mythfits Podcast revealed that she now eats meat.[26]

Byron continues to create art, including paintings created by igniting gunpowder.[27] In 2018 she published a memoir Crash Test Girl, with HarperOne.[28] Byron is credited with creating the original cover art, and providing interior art, for canvas: poems (Viewless Wings Press, 2021), using the black powder technique.[29]

In Crash Test Girl, Byron states she has "contended with severe bouts of depression" since she was twelve. She states she has depressive episodes "a few times a year"; in addition, she had postpartum depression, more severe than her normal depression, for six months after her daughter was born.[30]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Kari Byron

View on Grokipedia
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Kari Byron is an American television host, , , and best known for her role as a co-host and builder on the series from 2004 to 2014. Born on December 18, 1974, in , Byron grew up in Los Gatos and attended before studying film and at , from which she graduated magna cum laude with a in 1998. After college, she pursued a career as an , working in and while holding exhibitions in . Her entry into television came through an internship at , the special effects workshop owned by host , where she assisted with prop-making and effects, eventually leading to her casting on the show as part of the "Build Team" alongside and . During her decade on MythBusters, Byron contributed to testing urban legends and myths through scientific experiments, often focusing on creative builds and safety protocols, and became the longest-running female presenter on the series, inspiring many in STEM fields. She departed the show in 2014 alongside her Build Team colleagues to pursue new opportunities, citing a desire for creative evolution after ten years. Following her exit, Byron hosted Head Rush on the Science Channel from 2010 to 2011, exploring thrill-seeking science, and co-hosted the Netflix series White Rabbit Project in 2016 with Belleci and Imahara, investigating historical escapes, heists, and superweapons. She also appeared on shows like Creature Features (2016) and Crash Test World (2019), blending her interests in science, adventure, and education. Beyond television, Byron has continued her artistic pursuits and advocacy for STEM education as a co-founder and chief storyteller of EXPLR, an educational streaming platform launched to empower students with practical skills and real-world experiences. She co-founded and directs the National STEM Festival in , aimed at inspiring young innovators, with submissions for the 2026 edition opening in October 2025, and in May 2025 launched the Mythfits with , sharing behind-the-scenes stories from and science discussions. In 2018, she published her memoir Crash Test Girl: An Unlikely Experiment in Using the to Answer Life's Toughest Questions, which applies scientific principles to personal challenges like career, relationships, and motherhood. With over two decades in science and adventure media, Byron remains a prominent figure in promoting curiosity and gender diversity in technical fields.

Early life and education

Childhood and family

Kari Elizabeth Byron was born on December 18, 1974, in . She was raised in , a suburb in the same region. Byron grew up in a family that provided a nurturing environment for her early interests, though public details about her parents, Dennis and Sue Byron, remain limited. She has a younger sister named Summer. From a young age, Byron exhibited a strong curiosity for experimentation, foreshadowing her later career in scientific testing. By age 5, she was conducting informal tests, such as using dolls as and involving her sister in playful but risky activities like attempting to send her down a laundry chute or swinging her high on playground equipment. Her parents often intervened to ensure safety during these childhood adventures, highlighting a balance of encouragement and supervision in her upbringing.

Academic background

Byron graduated from in . After high school, she attended before transferring to , where she majored in film and . Her academic focus on these disciplines emphasized the intersection of visual storytelling and three-dimensional artistry, laying the foundation for her later work in science communication through creative experimentation. She graduated magna cum laude with a in May 1998.

Television career

MythBusters

Kari Byron joined the production of in 2003 as part of the behind-the-scenes crew at , the workshop of co-host , and transitioned to an on-screen role in 2004 as a member of the Build Team alongside and . The Build Team was formed to handle separate myth investigations from the main hosts, and Hyneman, allowing for parallel testing and expanded content. Byron's responsibilities on the Build Team centered on designing and constructing prototypes, performing hands-on experiments, and rigorously testing myths drawn from urban legends, movies, and everyday science queries in fields like engineering and physics. She earned the nickname "Crash Test Girl" for her frequent participation in high-stakes safety and impact tests, often involving crash simulations, ballistic trials, and structural integrity challenges that highlighted human vulnerability in extreme conditions. Representative examples of her contributions include the "Duct Tape Hour" specials, where the team explored the material's limits by building seaworthy vessels, lifting vehicles, and creating makeshift repairs to escape survival scenarios, as well as explosive builds such as the coffee creamer cannon, which demonstrated the combustible potential of everyday powders under pressure. Byron's full tenure as an on-screen Build Team member lasted from 2004 until the end of the 2014 season, though she took maternity leave during the second half of the 2009 season following the birth of her daughter, during which Jessi Combs served as a temporary replacement; she returned to filming in 2010 amid ongoing production demands. In 2011, amid her expanding commitments to projects like hosting Head Rush—a Science Channel series aimed at young audiences—Byron expressed a desire for new creative challenges beyond the show's routine, though she continued contributing to MythBusters episodes. She made a brief return in 2014 for behind-the-scenes content and the season's specials before the Build Team's departure was announced in the finale. Through her engaging on-screen presence and demonstration of the in action, Byron played a key role in popularizing STEM fields among broad audiences, inspiring curiosity about and experimentation, particularly among younger viewers and . The show's impact was recognized with a Primetime Emmy for Outstanding Reality Program in 2010, underscoring its educational value in blending entertainment with rigorous testing.

Other television projects

Kari Byron continued to explore science and engineering themes in several television projects, often collaborating with former Build Team colleagues and to test concepts in engaging formats. These endeavors highlighted her ability to blend with , transitioning from large-scale myth-busting to more specialized investigations of human ingenuity and limits. Byron's first standalone hosting role came with Head Rush, a Science Channel series that aired from 2010 to 2011. Geared toward middle-school students and teens, the show featured Byron leading bite-sized experiments, games, and Q&A segments on topics like , the physics of extreme sports, and human sensory limits to spark interest in STEM fields. Each episode included hands-on demonstrations, such as exploring the Weissenberg effect with liquids and drills, emphasizing accessible without the high-stakes explosions of her prior work. The series ran for two seasons. In subsequent years, Byron reunited with Belleci and Imahara for collaborative projects that expanded on their dynamic. From 2011 to 2013, they hosted specials of on the , covering the annual World Championship Punkin Chunkin Association event in where teams engineered massive catapults and cannons to launch pumpkins over 5,000 feet. The show delved into the mechanics of these devices, troubleshooting failures and celebrating record-breaking launches, while occasionally extending to chunking other objects like TVs and pianos to test principles. This format allowed Byron to focus on real-world innovation and safety in competitive settings. Byron and Belleci then co-hosted Thrill Factor on the in 2015, a six-episode series examining the engineering and physics behind adrenaline-pumping attractions across the U.S. They tested roller coasters, water slides, and zip lines, analyzing forces like G-forces and structural integrity to explain ride safety and design. Episodes included visits to parks like and , where the duo strapped into rides to demonstrate how safety features prevent crashes and ensure rider limits are not exceeded, shifting Byron's on-screen role toward experiential safety education. The trio's most notable post-MythBusters collaboration was White Rabbit Project, a 2016 Netflix original series consisting of six episodes. Filmed in a warehouse setting, Byron, Belleci, and Imahara investigated pop culture and historical curiosities, including ranking the greatest heists, prison escapes, and superweapons from history, such as the Nazi Wunderwaffen and gadgets. Each episode followed a "super-sized" myth-testing structure, blending archival footage, recreations, and expert consultations to evaluate feasibility and impact, marking a pivot to historical analysis over modern myths. The series received mixed reviews for its format but praised the hosts' chemistry. In 2019, Byron hosted Crash Test World on the Science Channel, a series produced by ProjectExplorer where she traveled to various locations to explore how history, technology, culture, and people intersect to improve the world. Episodes covered topics like urban innovation in New York City and global peace efforts, blending on-site investigations with educational insights. Byron also made brief guest appearances on other programs during this period, such as Creature Features in 2016, a horror movie marathon show where she introduced films like Werewolf in a Girls' Dormitory and discussed sci-fi elements with a light-hearted nod to her science background. These spots showcased her versatility beyond pure science content. Overall, these projects built on Byron's MythBusters expertise in experimentation and safety testing but emphasized historical contexts, collaborative storytelling, and broader educational outreach.

Later career and ventures

EXPLR Media and STEM initiatives

In 2020, Kari Byron co-founded EXPLR Media alongside Jenny Buccos, establishing it as an educational streaming platform targeted at tweens, teens, and educators, with content centered on adventure, , and real-world to foster and skill-building. As co-founder and Chief Storyteller, Byron contributes to the production of videos, curricula, and interactive resources designed to inspire interest in STEM fields by connecting learners to practical insights and personal narratives from professionals. Byron serves as director and co-founder of the National STEM Festival, launched in 2024 as a nationwide competition inviting students in grades 7-12 to develop inventions addressing global challenges such as and , with the inaugural event showcasing 126 innovative projects in The second edition, held in March 2025 during STEM Week, recognized 103 top student innovators through public presentations, workshops, and networking opportunities with industry leaders, emphasizing and problem-solving. As co-director of the National STEM Challenge, Byron oversees the submission and evaluation process for projects from students in grades 7-12, guiding participants toward culminating events that include recognition at the annual festival and experiential opportunities, such as planned trips to Washington, D.C., in June 2026 for top honorees. EXPLR Media's initiatives, including the festival, have formed partnerships with organizations like the Project Management Institute (PMI), which recognized the National STEM Festival as one of its 2024 Most Influential Projects for advancing education and sustainable development goals through youth innovation.

Podcast and public speaking

In June 2025, Kari Byron co-launched the podcast Mythfits with her former MythBusters colleague , produced and distributed by the Pionaire Podcast Network. The show reunites the duo to explore myths, conduct informal experiments, and share behind-the-scenes anecdotes from their television careers, blending humor with educational insights on topics like urban legends and explosive demonstrations. Episodes, released weekly, have featured discussions on Halloween-themed myths and personal reflections from , attracting listeners interested in accessible STEM content. Byron has expanded her public speaking profile through keynotes focused on STEM education, innovation, and career transitions in science communication. In October 2025, she delivered a keynote address at CyberCon , the Australian Cyber Conference, emphasizing experimentation in cybersecurity, the role of critical thinking in STEM, and bridging science with real-world applications. Her talks often highlight the importance of hands-on learning to inspire diverse audiences, drawing from her experience to advocate for inclusive innovation. Byron has made notable guest appearances on other platforms to discuss and educational outreach. In March 2025, she joined for an interview highlighting overlooked contributions of female scientists, underscoring barriers and breakthroughs in STEM fields. Earlier, in 2023, she hosted an SXSW EDU Studio interview with author , exploring intersections of culture, education, and media in shaping future innovators. Analyses of Byron's 2025 career trajectory indicate a deliberate pivot from television to speaking and educational media, prioritizing work-life balance while leveraging her expertise for high-impact engagements that can command $20,000–$30,000 per event. This shift aligns with her collaborations through EXPLR Media, where public talks amplify broader STEM initiatives.

Personal life

Family and relationships

Kari Byron married artist and designer Paul Urich in March 2006. The couple welcomed their daughter, Stella Ruby, on June 28, 2009, in the . Byron took maternity leave from following Stella's birth and returned to the show in late 2010. Byron and Urich's ended in , finalized on March 20, 2020. Since the divorce, Byron has raised Stella as a single mother while residing in the .

Artistic interests

Kari Byron developed a passion for and during her university studies at , where she earned a in and sculpture in 1998. After graduation, Byron pursued professionally, creating works that explored themes of societal vulnerability and compassion. Her debut solo exhibition, titled "Stray Doll," was held at the Anno Domini gallery in , from September 3 to 23, 2004. The show featured sculptures such as A.D. Arch Angel, Sweet Madness, and Glutton, inspired by her travels in and , where she observed lives marked by distress; these pieces served as a personal means to and process the "strange and scary world" around her. Byron's artistic foundation shaped her approach to , infusing projects with a distinctive aesthetic derived from her sculptural expertise, such as through the creation of custom visuals and props that highlighted creative experimentation. This integration allowed her to approach scientific inquiries from unconventional angles, blending the visual of with empirical rigor. In her ongoing pursuits, Byron maintains a balance between artistic creation and broader professional commitments, often drawing parallels between sculpture and science as complementary outlets for curiosity and problem-solving. She continues to develop personal projects that intersect art and scientific concepts, emphasizing their shared role in questioning and innovating.

References

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  11. https://explr.com/programs/2026-national-stem-festival-open
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