Squirrel Girl (Doreen Allene Green) is a superheroine appearing in American comic books published by Marvel Comics. Created by writer Will Murray and writer-artist Steve Ditko, the character first appeared in Marvel Super-Heroes vol. 2 #8, a.k.a. Marvel Super-Heroes Winter Special (cover-dated Winter 1991). Murray created the character out of a desire to write lighthearted stories, in contrast to the heavily dramatic tales that were then the norm in mainstream comics.Ditkomania #79. Marvel Comics.

Although distinct from the mutants of Marvel Comics, Doreen has a genetic anomaly which gives her the ability to communicate with squirrels. She has been a member of both the Avengers and the Great Lakes Avengers, and has been a supporting character in stories featuring Luke Cage and Jessica Jones. Doreen has also appeared in her own solo series, The Unbeatable Squirrel Girl, which has depicted her dividing her time between her superhero adventures and her work as a college student.

Publication history Creation and development Squirrel Girl was created by writer Will Murray and artist Steve Ditko, making her debut in "The Coming of ... Squirrel Girl" in Marvel Super-Heroes vol. 2 #8, a.k.a. Marvel Super-Heroes Winter Special (cover-dated Winter 1991).Marvel Super-Heroes (Marvel, 1990 series) at the Grand Comics Database She ambushes the superhero Iron Man, teams up with him, and, after Iron Man is captured, defeats the villainous Doctor Doom. The story also introduces her squirrel sidekick, Monkey Joe.

Murray has since described the character's genesis:

Murray attempted to pitch a follow-up story where Squirrel Girl tried to join the Fantastic Four, but it was turned down. Despite Marvel acknowledging the character's "coolness", Murray was told that she did not feel like a Marvel character and that they most likely would not use her again.

Later appearances Squirrel Girl next appeared in Marvel Year-In-Review '92, where she made a one-panel appearance in the self-satirizing book's Marvel 2099 section, where "Squirrel Girl: 2099" was listed as one of "the 2099 books we've pretty much ruled out" as actual future titles. Later, she was slated to join the New Warriors, but writer Fabian Nicieza left Marvel before going through with his plan. In 1997, Fleer-Skybox released cards based on Marvel Superheroes, one of which was a more sexualized version of Squirrel Girl.

She did not appear again for nearly a decade. She was mentioned only once in comics during that time: In Deadpool #7, Deadpool's friend/maid/mother-figure/prisoner Blind Al mentions accidentally putting "bleach in with [Deadpool's] Squirrel Girl Underoos".

In 2005, comic writer Dan Slott wrote a four-issue miniseries for the superhero team the Great Lakes Avengers. Created in 1989, this team was made up of enthusiastic heroes with bizarre and nearly useless abilities. They had appeared only a handful of times over their 16-year history, serving as comic relief. As part of the team's series, roster changes were made and the Squirrel Girl character was revived and included on the team. The miniseries satirized comic book deaths, and it was announced that a team member would die in every issue. After Squirrel Girl made a fuss to ensure that Monkey Joe would be an official member of the team, he was killed in the third issue. Slott would also pen further appearances for her and the team in the Christmas-themed GLX-Mas Special and GLI/Deadpool Summer Fun Spectacular one-shots. Slott's stories satirized Squirrel Girl's unlikely victory over Doctor Doom from her debut appearance by depicting her as capable of defeating some of Marvel's other highest-ranking supervillains, including MODOK, the Mandarin, and Thanos, mostly in comedically unexplained, off-panel ways.

During 2006's "Civil War" company-wide story arc, Squirrel Girl and the rest of the team fought Deadpool in Cable & Deadpool #30. In 2007, she and the newly renamed "Great Lakes Initiative" again appeared alongside Deadpool in the Deadpool/GLI Summer Fun Spectacular one-shot.

In September 2010's release of the five-part story line I am an Avenger, Squirrel Girl appears in the first issue in the story "Welcome Home Squirrel Girl". The premise of the story was simply Squirrel Girl coming home to Manhattan.

Squirrel Girl appears as a supporting character sporadically in the 2010–2013 New Avengers series, from issue #7 (February 2011) through its final issue #34 (January 2013). She is not a member of the team, but works as a super-powered nanny for the daughter of Luke Cage and Jessica Jones while attending New York University.New Avengers vol. 2 #7

The Unbeatable Squirrel Girl

On October 6, 2014, Marvel announced that Squirrel Girl would, for the first time, be starring in her own series, The Unbeatable Squirrel Girl, written by Ryan North and drawn by Erica Henderson. The series' first issue was released on January 7, 2015. The series' title alluded to the character's infeasible history of defeating high-level Marvel villains, and its central premise puts a twist on the idea, presenting Squirrel Girl as "unbeatable" because she always pursues non-violent solutions, befriending villains and helping them turn their lives around, rather than actually fighting them.

The Unbeatable Squirrel Girl ran for eight issues before being rebooted in October 2015 as part of the All-New, All-Different Marvel branding with Squirrel Girl being part of New Avengers. The Unbeatable Squirrel Girl continued as monthly publication until November 2019, for a total of 58 issues. Derek Charm took over art duties in May 2018.

Strong trade sales at school book fairs encouraged the team to develop an original graphic novel, The Unbeatable Squirrel Girl Beats Up the Marvel Universe!, released in October 2016. While Henderson told The Hollywood Reporter balancing the graphic novel and monthly series "was almost too much work", North expressed interest in another graphic novel, calling it "a fun challenge".

Starting in 2017, Squirrel Girl appeared in U.S.Avengers, a replacement title for The New Avengers.

Starting in January 2026, The Unbeatable Squirrel Girl received a Webtoon adaptation.

Podcast continuation In April 2022, Marvel Entertainment and SiriusXM launched Marvel's Squirrel Girl: The Unbeatable Radio Show which is a six-episode podcast series that acts as a direct continuation of the comic series. It is written by North, directed by Giovanna Sardelli and stars Milana Vayntrub as Squirrel Girl; the series is produced by Radio Point. Additionally, North "wrote an all-new Squirrel Girl vertical comic tie-in" which debuted on Marvel Unlimited.

Fictional character biography

Doreen Allene Green was born to Dorian and Maureen Green in Canada. When she was 10 years old, Doreen discovered she could communicate with squirrels; she suffered a modification in her genes for unknown reasons that granted her squirrel-like abilities, which manifested predominantly as a prehensile tail. When her parents consulted a doctor, it was determined that Doreen was not a mutant, even though she believed so for a long time. She is first seen as Squirrel Girl ambushing Iron Man in a forest, hoping to impress the veteran hero and become his sidekick. The 14-year-old introduces herself and her pet squirrel Monkey Joe and displays her squirrel-themed abilities. After she rescues Iron Man from Doctor Doom with the help of a horde of squirrels, Iron Man says she is too young to fight crime, but that he will put in a good word for her to the Avengers when she is older.Marvel Super-Heroes vol. 2 #8. Marvel Comics.

Years later, having moved to New York City, Doreen joins the Great Lakes Avengers. Squirrel Girl introduces each issue of the team's miniseries, providing an opinion about the contents of the series. Her sidekick Monkey Joe also joins the team and comments upon the series as well. He is later killed by Leather Boy, a rejected GLA member who was disguised as Doctor Doom. Enraged by the death of her friend, Squirrel Girl demonstrates the true extent of her powers when she defeats the villain Maelstrom by overwhelming him with a literal army of squirrels. She finds a new squirrel companion during this battle, the only one of her squirrel army who survived. Doreen names her Tippy-Toe. After receiving a subpoena from the Avengers and discovering that her teammates are all mutants, the team renames themselves the "Great Lakes X-Men", complete with new costumes.GLA: Misassembled #1–4 (2005). Marvel Comics.

During the GLX-Mas Special, Squirrel Girl and Tippy-Toe single-handedly defeat the supervillains MODOK, Terrax, and Thanos. S.H.I.E.L.D. agent Dum Dum Dugan tries to recruit her, explaining that the organization had been watching her for some time. Doreen declines the offer, saying she is happy with the Great Lakes X-Men.GLX-Mas Special (Dec. 2005). Marvel Comics.

After helping the Thing defeat Bi-Beast, Squirrel Girl was invited to the annual Superheroes Poker Tournament and brought the team with her. In the end, Flatman won the tournament with a straight flush, beating the Thing's four fours. After being discouraged from using the names X-Men and Defenders by members of those teams present at the tournament, and since Flatman was the champion of the tournament, the team renamed themselves the Great Lakes Champions, despite protests from former Champions of Los Angeles member Hercules.The Thing vol. 2 #8 (2006)

During the Civil War crossover storyline, Squirrel Girl and the Great Lakes Champions registered under the Superhuman Registration Act, as revealed when Deadpool attempted to apprehend them for violating the Act, only to be defeated and informed that they had already registered.Cable and Deadpool #30. Marvel Comics. Under the Registration Act, Squirrel Girl remains a member of the again-renamed Great Lakes Initiative.Deadpool/GLI Summer Fun Spectacular. Marvel Comics.

Squirrel Girl and the GLI, along with Deadpool, are sent to save Dionysus after he fell from Mount Olympus and was captured by A.I.M., who planned to use his powers to cause mental instability in superheroes they consider a threat. After their victory, Squirrel Girl helps Dionysus back to Olympus and to his own bed to sleep it off. It is later revealed that she is a fan of the superhero team the New Warriors, especially Robbie Baldwin, the hero Speedball, on whom she has a crush, and the two eventually share a kiss. Squirrel Girl convinces Doctor Doom to let her use a time machine to prevent Speedball from becoming the guilt-plagued hero Penance. The device instead takes her into the year 2099, where she encounters an alternate, future version of Speedball, whom she unsuccessfully tries to have return with her to her present day. She also encounters a future version of Mister Immortal who convinces her to kick Deadpool out of the team, which she does after returning to her own time.

During the Secret Invasion storyline, the team confronted a Skrull disguised as Grasshopper, with help from Gravity and Catwalk.Avengers: The Initiative #19 (Dec. 2008). Marvel Comics. They later appeared to welcome Gravity as leader of the team, after he was transferred to Wisconsin by Norman Osborn.Avengers: The Initiative #25. Marvel Comics.

After defeating Fin Fang Foom and finding little support from her teammates on the again renamed Great Lakes Avengers, whom she believes have her shoulder most of their work, she exits the group.Age of Heroes #3. Marvel Comics.

When Luke Cage and Jessica Jones seek a nanny for their daughter Danielle Cage, they hire Squirrel Girl. It is also revealed that Doreen had a brief relationship with Wolverine (then a member of the New Avengers), which did not end happily.