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Professor Milo
Professor Milo
Professor Milo
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Professor Milo
Professor Milo as depicted in Who's Who in the DC Universe #18 (August 1986). Art by Mike Zeck (penciler) and John Beatty (inker).
Publication information
PublisherDC Comics
First appearanceDetective Comics #247 (September 1957)
Created byBill Finger (writer)
Sheldon Moldoff (artist)
In-story information
Alter egoAchilles Milo
SpeciesHuman
AbilitiesRenowned expert in chemistry and alchemy

Professor Achilles Milo is a fictional character appearing in American comic books published by DC Comics.

Publication history

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Professor Achilles Milo first appeared in Detective Comics #247 and was created by Bill Finger and Sheldon Moldoff.

Fictional character biography

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Achilles Milo is a renowned chemist who turned to crime.[1] He used a variety of chemical and medical-related schemes to kill Batman involving subjecting Batman to a drug that made him afraid of anything bat-shaped. After Robin helped him get over his fear of bats, Batman tracked down Milo at his laboratory and handed him over to the police. While incarcerated, Milo developed a fear of bats.[2]

Upon being apprehended again, Milo gassed Batman with a compound that made him lose his will to live.[1]

When Anthony Lupus visited him for a cure for his unbearable headaches, Milo gave him a drug that was derived from the Alaskan timber wolf which turned him into a werewolf. Milo found that the headaches were causing the lycanthropy and manipulated him into doing his bidding in exchange for a cure. His latest assignment was to help capture Batman and then kill him. When Batman was trapped near Milo's secret laboratory, Milo is told by Anthony to give him the cure before his situation worsens. Milo just orders him to do his job. When Anthony turns into a werewolf, Milo is attacked by him where he is unable to control him and the cure he made was destroyed.[3]

At one time, Milo took control of Arkham Asylum and attempted to make Batman insane with yet another gas. When Batman tried to apprehend him, Milo was overpowered by the mad inmates, who had sided with Batman, and exposed to his own gas which drove him insane, and he spent some time in Arkham Asylum as a patient himself.[4]

Batman consulted Milo on at least one occasion when he needed chemical expertise on a toxin given to him by Joker. After that, Milo retired from criminal activity. He appeared in Arkham Asylum: A Serious House on Serious Earth where the gas had worn off, but he could not convince anyone he was actually sane.[5]

In 52, Ralph Dibny confronts an emaciated Doctor Milo, who appears without his lower legs and in a wheelchair, which is used to disguise the Silver Wheel of Nyorlath.[6]

In Batman R.I.P., a past hallucination induced by Professor Milo's gas is revealed to have inspired Bruce Wayne to create the 'back-up' personality of the Batman of Zur-En-Arrh, a more ruthless Batman personality designed to take over in the event of Bruce Wayne being psychologically attacked in such a manner as to render Batman out of action.

An apparently healed Professor Milo appears as the chief henchman and physician of a returned General Immortus. Milo is now in charge of granting artificial superpowers to Immortus' minions. In this capacity, he's able to internalize the Human Flame's powers, removing his need for a special suit by embedding miniature flamethrowers into his skin. Milo is instructed by Immortus to tamper with the pain receptors of his subject, making his boss able to inflict pain on his creations at will, and, eventually, shut them down completely. His master plan meets a major failure when his last subject Human Flame overcomes his control by sheer will, injures Immortus, and tortures Milo to get an even more powerful body. Milo is spared since he redirects the Human Flame to S.T.A.R. Labs for experimental treatments. Immortus asks him to rethink their new strategy for the future.[7]

A still at large Milo (having severed his ties with Immortus) returns to freelancing, offering his enhancement procedures for a hefty fee. He is contacted by Arthur Pemberton to heal the brain damage earlier inflicted in a fight against the Justice Society of America to his daughter Lorna.[8]

In 2011, "The New 52" rebooted the DC Comics universe. Professor Milo is seen at Arkham Asylum where he leads Professor Pyg to an unpleasant fate.[9] After Maggie Sawyer had interrogated Magpie, Maxie Zeus, and Ten-Eyed Man, all Maggie got out of them is that they blame Milo for what happened. As Milo is at Gotham International Airport preparing to board an airplane to Caracas, he is spotted by police officers causing him to release a vial of chemicals that drive the police officers insane. Batman was able to subdue Milo and interrogate him on who gave him the information and needs to destroy Arkham Asylum. Before Milo can come clean on the culprit, they are attacked by spirits.[10] One of the spirits that attacks Batman and Milo is Mister Bygone, who blames Milo for his emaciation and infusion of dark magic. Milo is knocked out by Mister Bygone as Batman leaves with his body when the police arrive. When Batman meets up with Jim Corrigan and Batwing, Milo is punched in the face by Corrigan who tries to get answers out of him as he explains to Batman that Milo tried to summon a demon which enabled Deacon Blackfire to open a hole in Hell. Batman puts two and two together and goes out to find Ra's al Ghul.[11]

In "Doomsday Clock", Professor Milo is at Arkham Asylum when Rorschach was incarcerated there by Batman.[12]

Powers and abilities

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Professor Milo is an expert in chemistry and alchemy.

In other media

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Television

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Film

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Professor Milo appears in a flashback in Scooby-Doo! & Batman: The Brave and the Bold.[13] Years prior, he experimented on a faulty teleportation device that seemingly killed his colleague Leo Scarlett until Batman discovered Milo's work and defeated him. His other lab assistant would go on to become The Riddler and revive the project.

Video games

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Professor Milo appears as a non-playable character in Batman: Arkham Underworld, voiced again by Armin Shimerman. This version provides his services to supervillains, offering to provide gadgets, upgrade their abilities, and grant them new ones.

See also

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References

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Revisions and contributorsEdit on WikipediaRead on Wikipedia

Professor Milo

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from Grokipedia
Professor Achilles Milo, also known as Professor Milo, is a fictional and in the DC Comics universe, best known as a recurring enemy of Batman who specializes in and psychological manipulation through his scientific expertise. Created by writer and artist , Milo made his debut in #247 (September 1957), where he employed a fear-inducing drug to terrorize Batman by amplifying the hero's phobia of bats, ultimately driving himself insane from exposure to his own chemicals and leading to his incarceration in . In subsequent stories, Milo continued as a cunning chemist-turned-criminal, developing deadly gases, suicidal compounds, and pain-receptor manipulators for schemes against Batman and allies like , including a plot to grant superpowers via internalized abilities such as fire generation. His character embodies the archetype of the deranged intellectual, often disguising himself—such as feigning wheelchair-bound frailty to conceal artifacts like the Silver Wheel of Nyorlath—and collaborating with other villains like before pursuing freelance endeavors, such as experimental brain surgeries. Beyond the comics, Milo has been adapted into animation, notably as a supporting antagonist in episode "" (1997), where he engineers a plague targeting Gotham's stray cat population, and in 's "The Doomsday Sanction" (2006), culminating in his death at the hands of Doomsday. In contemporary DC continuity, Milo balances his villainous past with a faculty position as a chemistry professor at Gotham Academy, joining other reformed or enigmatic figures like Kirk Langstrom () in the science department, and is depicted with his signature bowl-cut hairstyle as one of Gotham's more terrifying mad scientists.

Publication history

Creation and conception

Professor Achilles Milo, better known as Professor Milo, was created by writer Bill Finger and artist Sheldon Moldoff for DC Comics. He debuted in Detective Comics #247, cover-dated September 1957, in the story titled "The Man Who Ended Batman's Career," with inks provided by Charles Paris. In his inaugural appearance, Milo is portrayed as a brilliant but deranged chemist who seeks to dismantle Batman's crime-fighting career by administering a specially formulated fear serum. This toxin induces an intense phobia of bats in the Dark Knight, compelling him to relinquish his cowled persona and operate under the alias "Starman" to continue his work incognito. The plot highlights Milo's scientific ingenuity as a direct counter to Batman's physical and deductive prowess, establishing him as a classic Silver Age villain reliant on chemical manipulation rather than brute force. Milo's conception aligns with the mid-1950s trend in Batman comics toward introducing gadget-wielding mad scientists, expanding the beyond traditional gangsters to include intellectual adversaries who exploit psychological and biochemical vulnerabilities. As one of Bill Finger's later contributions to the Batman mythos—Finger being a co-creator of the character himself—Milo represents an effort to inject fresh, science-fiction-tinged threats into the series amid the Comics Code Authority's influence, which emphasized moral tales over outright horror.

Key comic appearances

Professor Milo made his debut in Detective Comics #247 (September 1957), in the story "The Man Who Ended Batman's Career," where the mad scientist attempts to neutralize Batman by administering hallucinogenic drugs that induce a crippling phobia of bats. Subsequent Silver Age appearances highlighted Milo's chemical ingenuity as a recurring threat. In Batman #112 (August 1958), he uses amnesia gas to convince Batman that he is a delusional patient in a psychiatric ward, forcing Robin to orchestrate a rescue. Milo escalated his schemes in Batman #139 (February 1961), constructing an elaborate island fortress riddled with deadly traps designed specifically to eliminate the Dark Knight. Milo's apparent death occurred in Batman #255 (January–February 1974), during "The ," where he experiments on boxer Anthony Lupus, transforming him into a ; the creature ultimately turns on Milo, shattering his antidote vial and inflicting fatal injuries. Despite this demise, Milo returned in Batman #327 (September 1980), having survived and infiltrated as its director to manipulate inmates into committing coordinated crimes across Gotham. In the storyline (Batman #676–681, May–November 2008), Milo's fear gas from his debut appearance is revealed to have induced a that later inspired Batman to create his backup personality "Zur-En-Arrh". In the continuity, Milo was reintroduced as a chemistry instructor at Gotham Academy in Gotham Academy #2 (November 2014), blending his academic facade with covert villainy. He features prominently in the weekly series (2014), appearing as a key antagonist in Arkham-related plots starting from issue #16, where his scientific manipulations contribute to a broader conspiracy threatening Batman and Gotham.

Fictional character biography

Origin and early schemes

Professor Achilles Milo, a renowned chemist who descended into criminality, made his debut as a Batman antagonist in Detective Comics #247 (September 1957), written by Bill Finger and illustrated by Sheldon Moldoff. In this introductory tale, titled "The Man Who Ended Batman's Career," Milo sought to dismantle Batman's effectiveness by developing a specialized serum designed to instill an irrational phobia of bats in the vigilante. Unbeknownst to Batman, he inhaled the chemical during an encounter, triggering severe panic attacks that compelled him to abandon his bat-themed persona and operate temporarily as the star-themed hero "Starman." Robin intervened by conducting a series of psychological experiments to reverse the effects, enabling Batman to regain his composure and capture Milo, marking the villain's initial defeat. Milo's subsequent early scheme unfolded in Batman #112 (February 1958), where he exploited his chemical prowess to deploy an amnesia-inducing gas against Batman. The gas caused Batman to awaken in a simulated mental ward, convincing him that he was merely a delusional patient rather than Gotham's protector, thereby isolating him from his allies and resources. This ploy aimed to permanently discredit and neutralize Batman by trapping him in a fabricated reality of institutionalization. Robin's timely intervention restored Batman's memories, leading to Milo's apprehension and incarceration. After a period of obscurity, Milo resurfaced in Batman #255 (March–April 1974), scripted by Len Wein with art by Neal Adams and Dick Giordano, showcasing his ongoing fascination with mind-altering substances. Here, Milo targeted former Olympic decathlete Anthony Lupus, who suffered chronic migraines from a latent lycanthropic condition, by administering a serum derived from wolf DNA that enhanced his transformations, turning Lupus into a controllable, werewolf-like beast. Milo orchestrated the creature's rampages to draw out and overwhelm Batman, intending to harness the enhanced physical prowess for broader criminal ends. Batman ultimately subdued the transformed Lupus and thwarted Milo, underscoring the villain's pattern of using biochemical manipulation to create unwitting monsters as proxies in his conflicts.

Major conflicts with Batman

Professor Milo's conflicts with Batman primarily involve his expertise in psychoactive chemicals and serums aimed at undermining the Dark Knight's mental resilience and identity. His schemes often target Batman's symbolic reliance on the bat motif or induce transformations in others to serve as weapons against the hero. In Batman #255 (1974), Milo revived his rivalry with Batman by treating former Olympic decathlete Anthony Lupus, who suffered from a latent lycanthropic condition. Instead of curing Lupus, Milo enhanced his condition with chemicals, transforming him into a under Milo's control. Milo blackmailed the beast into assassinating Batman, leading to a tense during a where Batman subdued the creature using non-lethal tactics and strategy, capturing Milo. This story marked Milo's return after nearly two decades and highlighted his willingness to manipulate biological anomalies for revenge. Milo's most audacious scheme occurred in Batman #326–327 (1980), where he infiltrated and took over by posing as its director. Posing as a , Milo used hypnotic drugs and chemical agents to control , turning the facility into a criminal operation hub. He forced select prisoners to commit robberies using their unique skills, then readmitted them undetected. Batman, going undercover as an , uncovered the plot and battled Milo amid a incited by an insanity-inducing gas. Batman ultimately overpowered Milo, restoring order to the asylum. This arc demonstrated Milo's evolution from lone to institutional manipulator. Milo's influence extended into modern Batman continuity through a hallucinogenic gas he deployed in an early encounter, later revealed in Batman #679 (2008) as part of the storyline. The gas induced a vivid in Bruce Wayne of an alien world called Zur-En-Arrh, inspiring him to develop a psychological backup personality to safeguard his mind against future mental attacks. This revelation retroactively elevated Milo's early experiments as a foundational element in Batman's defensive protocols against villains like the Black Glove.

Role in modern continuity

In the Prime Earth continuity established after The New 52 reboot, Professor Achilles Milo reemerges as a key antagonist in Batman Eternal #16 (July 2014), operating as a rogue scientist within . He receives the newly incarcerated into his custody on the asylum's ground floor, placing him in experimental conditions similar to those inflicted on , as part of the facility's escalating chaos and ties to a citywide nanovirus outbreak. Milo's involvement deepens across the Batman Eternal series, culminating in issue #44 (February 2015), where he is unmasked as the architect of Arkham's catastrophic explosion. Disguised and fleeing to with a suitcase of fight gas, he deploys the chemical to incite police infighting during his escape attempt, revealing his role in a larger scheme blending and the under an unseen manipulator's direction. Batman thwarts him mid-flight, destroying his syringes with from the Batjet and leaving him suspended from rafters; Milo is later beaten for information and haunted by spectral visions of his victims. Post-capture, Milo secures a faculty position as a chemistry professor at Gotham Academy, the elite school adjacent to , allowing him to mask his criminal activities behind educational legitimacy. He joins the chemistry department, as highlighted in official series overviews, where his mad-scientist tendencies subtly influence the academy's supernatural and secretive atmosphere. In Gotham Academy #18 (May 2016), a yearbook-themed issue, Milo's inner monologue—rendered in cursive script—recaps key school events from his vantage point, blending nostalgia with ominous hints at his duplicitous oversight of student mysteries tied to Arkham's legacy.

Powers and abilities

Scientific expertise

Professor Achilles Milo, better known as Professor Milo, is a preeminent whose criminal endeavors revolve around the synthesis of psychoactive substances capable of altering , , and . His scientific prowess stems from a legitimate background in chemistry, where he initially gained acclaim for innovative compounds before succumbing to villainy and applying his talents to undermine Batman's operations. Milo's most notable contributions include the creation of targeted fear-inducing drugs, as demonstrated in his first confrontation with Batman. In this scheme, he administered a chemical agent that instilled an irrational phobia of bat-shaped objects, exploiting psychological conditioning to incapacitate and force his retirement from crime-fighting. This approach highlighted Milo's understanding of and its intersection with behavioral . Expanding on mind-altering agents, Milo developed a suicidal gas that stripped victims of their will to live, deploying it in an attempt to demoralize Batman by affecting his allies and the public. He also engineered an insanity-inducing gas intended to drive Batman mad, though the compound ultimately affected Milo himself, leading to his institutionalization at . These inventions underscore his expertise in aerosolized psychoactive delivery systems and their rapid neurological impacts. Beyond pure chemistry, Milo's work extends into biological and genetic manipulation. He manipulated the condition of Anthony Lupus, using chemical treatments to amplify lycanthropic traits and create a controllable, enforcer for his . In modern continuity, as of 2025, Milo serves as a chemistry professor at Gotham Academy, instructing students in foundational and advanced chemical principles.

Chemical inventions and weaknesses

Professor Milo, whose real name is Achilles Milo, is renowned for his expertise in chemistry, specializing in psychoactive compounds designed to manipulate the human mind and incapacitate his foes, particularly Batman. His inventions often revolve around gases and serums that induce specific psychological effects, allowing him to execute elaborate schemes without direct confrontation. One of Milo's seminal creations is a fear-inducing serum featured in his debut scheme, which he administered to Batman to instill an intense phobia of anything bat-shaped, effectively aiming to dismantle the vigilante's crime-fighting identity and career. This compound, developed through psychological experimentation, caused Batman to recoil from his own costume and emblem, rendering him temporarily ineffective until cured by Robin. Milo later employed an amnesia gas in a plot to disorient Batman, trapping him in a simulated mental ward environment where he awoke believing himself institutionalized, erasing key memories to facilitate further criminal activities. In a more ambitious endeavor, Milo engineered an insanity-inducing gas during his takeover of , intending to unleash chaos by driving inmates and pursuers mad; however, the plan backfired when his protective suit was compromised, exposing him to the chemical and resulting in his own permanent mental deterioration. This incident led to his commitment in , where he later provided chemical analysis assistance to Batman on occasion, such as identifying a Joker toxin. Milo has also developed pain-receptor manipulators to target heroes like and compounds capable of granting superpowers by internalizing abilities, such as enabling fire generation in collaborators like the Human Flame while working with . Milo's primary weaknesses stem from his lack of physical strength and combat skills, making him reliant on intellect and chemical agents rather than direct engagement; he is often depicted as cowardly when cornered without his tools. His overdependence on volatile inventions proved catastrophic, as self-exposure to his own psychoactive compounds not only ended his criminal career but also confined him to the asylum he once sought to control, highlighting the inherent risks of his experimental approach.

In other media

Television adaptations

Professor Achilles Milo first appeared in the DC Animated Universe within Batman: The Animated Series, where he was voiced by Treat Williams. In the episode "Cat Scratch Fever" (Season 1, Episode 33, aired November 5, 1992), Milo collaborates with industrialist Roland Daggett to unleash a deadly plague on Gotham City's stray cat population, aiming to eliminate competition for a new experimental cat food product; the scheme is thwarted by Batman and Catwoman, leading to Milo's arrest. In "Moon of the Wolf" (Season 1, Episode 36, aired November 11, 1992), Milo is hired by wrestler Anthony "Romulus" Lupus to enhance his strength through genetic experimentation, resulting in Romulus's transformation into a werewolf-like creature; Batman intervenes, and Milo is captured after attempting to exploit the serum for his own gain. Milo's role expanded in the shared DC Animated Universe with an appearance in Justice League Unlimited, voiced by Armin Shimerman. In "The Doomsday Sanction" (Season 2, Episode 3, aired February 19, 2005), Milo joins Project Cadmus as a scientist, where he contributes to creating a Doomsday clone as a weapon against Superman; the clone rampages uncontrollably and kills Milo during its activation. Outside the DC Animated Universe, Milo features in Batman: The Brave and the Bold, voiced by Dee Bradley Baker. In the episode "Gorillas in Our Midst!" (Season 2, Episode 12, aired April 16, 2010), in the teaser segment, Milo uses mind-control chemicals to train an army of rats to steal diamonds from a museum but is defeated by Batman and the Spectre, who transforms him into cheese, leaving him to be devoured by his own creations. These animated television portrayals emphasize Milo's expertise in unethical biological and chemical manipulations, often positioning him as a supporting antagonist in Batman's rogues' gallery.

Film and animation

As of November 2025, Professor Milo has no appearances in live-action films or feature-length animated films. His animated portrayals are covered in the television adaptations section above.

Video games

Professor Milo appears in the 2016 mobile strategy game Batman: Arkham Underworld, developed by Warner Bros. Interactive Entertainment, where he serves as a non-playable allied with the player's criminal syndicate operating out of Gotham's sewers. In this iteration, Milo acts as a bio-chemist who conducts experiments on captured super-villains to enhance their abilities, such as amplifying the Riddler's electrical force, strengthening Killer Croc's physical prowess for feats like neck snaps, and refining Scarecrow's fear toxin. He provides strategic support by analyzing and upgrading the syndicate's operatives, drawing on his expertise in chemical manipulation to bolster their operations against Batman and rival factions. Voiced by , this version of Milo emphasizes his role as a behind-the-scenes enabler of villainous schemes rather than a direct combatant. The game was shut down in October 2017.
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