Beast is a fictional character appearing in American comic books published by Marvel Comics and is a founding member of the X-Men. The character was introduced as a mutant possessing ape-like superhuman physical strength and agility, oversized hands and feet, a genius-level intellect, and otherwise normal appearance and speech. Eventually being referred to simply as "Beast", Dr. Henry Philip "Hank" McCoy underwent progressive physiological transformations, gaining animalistic physical characteristics. These include blue fur, both simian and feline facial features, pointed ears, fangs, and claws. Beast's physical strength and senses increased to even greater levels.
Despite his feral appearance, he is depicted as a brilliant, well-educated man in the arts and sciences, known for his witty sense of humor, and characteristically uses barbed witticisms with long words and intellectual references to distract his foes. He is a world authority on biochemistry and genetics, the X-Men's medical doctor, and the science and mathematics instructor at the Xavier Institute (the X-Men's headquarters and school for young mutants). He is also a mutant political activist, campaigning against society's bigotry and discrimination against mutants. While fighting his own bestial instincts and fears of social rejection, Beast dedicates his physical and mental gifts to the creation of a better world for man and mutant.
One of the original X-Men, Beast has appeared regularly in X-Men-related comics since his debut. He has also been a member of the Avengers and Defenders. Various storylines over the years have hinted that Beast has capacity to become a supervillain; his alternative universe counterpart Dark Beast was a recurring character in 2000s and 2010s comics. During the Krakoan Age 2020s X-Men storylines, Beast assumes an antagonistic role to the other X-Men, becoming an outright villain. At the end of the Krakoan Age, Hank ultimately dies in an act of last minute redemption, and is replaced by a younger clone of himself whose memories stop short of the events which corrupted Beast.
Beast survived the explosion and transferred his consciousness into a white-furred synthetic body. He becomes the head of the organization 3K, which seeks to forcibly mutate humans so that mutants outnumber humanity.
The character has also appeared in media adaptations, including animated television series and feature films. Beast has been a cast member in all X-Men animated series, most notably in X-Men: The Animated Series (1992–97), voiced by George Buza, a role he reprised in the series' revival X-Men '97 (2024–present). Kelsey Grammer and Nicholas Hoult have portrayed the character in 20th Century Fox's X-Men film series (2006–2019). Grammer reprises the role in the Marvel Cinematic Universe films The Marvels (2023) and Avengers: Doomsday (2026).
Publication history 1960s Created by writer Stan Lee and artist and co-writer Jack Kirby, the character first appeared in X-Men #1 (September 1963). Stan Lee writes in the foreword to X-Men: The Ultimate Guide that he made Beast the most articulate, eloquent, and well-read of the X-Men to contrast with his brutish exterior. Further, the book opines that the Werner Roth–Roy Thomas team garnered admiration for their "appealing and sensitive characterizations of the original X-Men". Roth, under the alias Jay Gavin, had taken over for Kirby fully by issue #18, and Thomas was a new talent. Along with the rest of the X-Men, Beast was given an individualized, colorful new costume in issue #39.
According to writer Will Murray, a possible inspiration for the Beast was Andrew Blodgett "Monk" Mayfair, a companion of pulp hero Doc Savage. Both are possessed of an apelike appearance and are brilliant scientists. Before becoming more erudite in later issues, McCoy also used a great deal of slang in his early appearances much like Monk.Murray, Will (April 2004). "Pulp Roots of the X-Men". Comic Book Marketplace #111.
1970s, 1980s, and 1990s In Amazing Adventures vol. 2 #11 (March 1972), written by Gerry Conway and drawn by Tom Sutton, Beast underwent a radical change and mutated into his furry, blue (originally grey) appearance. The concept originated with Roy Thomas, an effort to make the character more visibly striking, and Beast also became more werewolf-like to capitalize on the success of Werewolf by Night. Steve Englehart, who wrote the remainder of the Beast's short-lived spotlight in Amazing Adventures, emphasized the character's wit rather than the tragedy of his transformation into a more monstrous form, reasoning that the Beast's intelligence and sense of humor would allow him to see his misfortune in perspective. Over the next decade the Beast would appear on the roster of several teams in titles ranging from The Avengers to The Defenders to X-Factor. It was not until 1991, in X-Factor #70/X-Men #1, that the Beast finally returned to the X-Men.
Englehart later said that he added the Beast to the Avengers roster because he wanted to write the character again and thought his funny, down-to-earth personality would make him a good foil for Moondragon. Succeeding writers of The Avengers similarly found that the character's lightheartedness made a good balance to the team's generally serious tone, resulting in the Beast's run in The Avengers outlasting his earlier run in X-Men. His friendship with fellow Avenger Wonder Man would likewise come to eclipse his friendship with X-Man Iceman for the comics fandom. The Avengers #137 (July 1975) debuted the Beast's catchphrase, "Oh, my stars and garters," and The Avengers #164 (October 1977) was the first to depict him as a sex symbol, a take which writer Jim Shooter said resulted in very positive mail from female readers in particular.
In 1986, Beast re-joined the original X-Men in a new team, X-Factor. In 1991, he re-joined the X-Men along with the rest of the original team.
2000s In X-Treme X-Men #3 (2001) he experienced a further mutation into a feline being, first shown in the introduction to New X-Men (June, 2001), by Frank Quitely and Grant Morrison. As evidenced on the back cover of X-Treme X-Men Chris Claremont, writer of that series in addition to both The Uncanny X-Men (for sixteen consecutive years) and X-Factor, contributed much to the Beast's characterization. Citing Claremont as inspiration for his run on New X-Men, Morrison explains Beast as a "brilliant, witty bipolar scientist". Morrison continues, "I saw Henry McCoy as an incredibly clever, witty, cultured, well-traveled, experienced, well-read character so I brought out those parts of his personality which seemed to me to fit the profiles of the smartest and most worldly people I know—his sense of humor is dark and oblique. He's obviously quite clearly bipolar and swings between manic excitement and ghastly self-doubt. He has no dark secrets, however, and nothing to hide."The End of an X-Era
Joss Whedon's "Astonishing X-Men: Gifted" story arc featured a "mutant cure" designed by Indian Benetech scientist Dr. Kavita Rao, and the prospect of "real" humanity arouses the interest of a heavily mutated Beast, who visits Rao only to discover that the drug is the product of illegal human experimentation on an unknown victim. The idea of a mutant cure, which had previously appeared in the 1992 animated series, was also the basis of the X-Men: The Last Stand movie plot and the series was even made into a motion comic. IGN called the arc focusing on Beast "best X-Men run in a decade" and lauded Whedon for flawless character dynamics.Astonishing X-Men HC, Vol. 1 Review According to BusinessWeek, Beast is listed as one of the top ten most intelligent fictional characters in American comics.
2010s and 2020s Beast appeared as a regular character throughout the 2010–2013 Secret Avengers series, from issue #1 (July 2010) through its final issue #37 (March 2013).
In X-Men Legends Vol. 2 #1-2 (2022), taking place between The Incredible Hulk #181 - 182 and Giant Size X-Men #1 starring Wolverine, it is revealed that Beast was responsible for the existence of Wolverine's will-be iconic X-Men mask, when Beast was manipulated by Mesmero into his amnesiac masked servant, Wildlife.
Fictional character biography Henry "Hank" McCoy is the son of Norton McCoy, a nuclear power plant worker whose exposure to radiation caused his son to be born a mutant with unusually large hands and feet. Nicknamed "Beast" by his classmates, Hank's mutant physique made him a star football player, though he grew self-conscious about his proportions and learned to mask his insecurity behind an outsized vocabulary and bookish manner. After a criminal known as the Conquistador abducted his parents to force him into service, the X-Men intervened, and Professor Charles Xavier recruited Hank as a founding member of the team.
As one of the original X-Men alongside Cyclops, Marvel Girl, Iceman, and Angel, Beast was written as sociable and prone to forming close friendships and long romances, including one with Vera Cantor that recurred over the years. After he and Iceman were attacked by an anti-mutant mob, an embittered Beast briefly quit the team and took up professional wrestling before returning to help defeat the man who had beaten him in the ring.
After graduating from Xavier's school, McCoy became a genetic researcher at the Brand Corporation, where he isolated a chemical compound capable of temporarily granting mutant traits. When communist spies infiltrating Brand threatened to expose him as a mutant, he drank the compound to disguise himself; the transformation slowed his perception of time so severely that he missed the window to take an antidote, leaving him with a blue-furred animalistic appearance. He briefly hid his new form behind a mask and gloves before abandoning the disguise and exposing corruption at the Brand Corporation.
Beast joined the Avengers, first as a foil for Moondragon and later as a full member, and briefly worried that his scientific talents were overshadowed by teammate Hank Pym even as he became a sex symbol celebrity. He formed a lasting friendship with fellow Avenger Wonder Man before departing when the team's roster was overhauled, wanting to rediscover his identity beyond the role of team jester.
Beast then joined the Defenders to seek Doctor Strange's help after his girlfriend Vera Cantor fell into a coma from Skrull poisoning, and found the team's looser structure liberating, eventually becoming its leader. He became a public lecturer and activist, founding the mutant rights coalition MONSTER, and was later paired with Dazzler to rescue her from a cult-like mutant organization.
After the Defenders disbanded, Beast reunited with his original teammates Cyclops, Iceman, Angel, and a revived Jean Grey to form X-Factor, a team that publicly posed as mutant hunters while secretly locating and training young mutants, beginning with a fire-generating sailor named Rusty Collins. He was later abducted by former Brand scientist Carl Maddicks, who used a serum to revert him to a more human appearance; his fur-covered form was eventually restored by the mutant Infectia. X-Factor subsequently battled the Alliance of Evil, a group secretly assembled by Apocalypse.
Beast underwent further transformations in the years that followed, including a period of more feral, cat-like mutation, and secluded himself in a laboratory until he found a cure for the Legacy Virus. He later maintained a relationship with S.W.O.R.D. director Abigail Brand, served on Secret Avengers, and took Professor X's seat in the Illuminati, inheriting his Infinity Gem.