Steven T. Seagle

Steven T. Seagle is an American writer who works in the comic book, television, film, live theater, video game and animation industries.

He is best known for his graphic novel memoir It's a Bird... (Vertigo, May 2004), and as part of his Man of Action Studios (with Duncan Rouleau, Joe Casey and Joe Kelly) which created the animated Cartoon Network series Ben 10.

Seagle is also a founding member of Speak Theater Arts, creators of live stage productions, and is a former college instructor having taught at Ball State University, Pasadena City College and Mt. San Antonio College, where he also served as a coach for the Forensics team during many of their national championship seasons.

Early life Seagle was born in Biloxi, Mississippi. Seagle's father, Jack, was in the United States Air Force, and as a result, the family moved many times. The family twice lived in Colorado Springs, Colorado, near the United States Air Force Academy where Jack was stationed. Seagle recalls watching the Moon landing on television in their apartment by what is today Chapel Hills Mall. Seagle's first encounter with Spider-Man was when his mother, Jennie, brought Seagle's brother, David, to the airforce Base Exchange, where she purchased The Amazing Spider-Man #66, which featured the villain Mysterio for David and Avengers #89 featuring Captain Marvel for Steven. Years later, after Seagle had begun collecting comics himself, and his best friend, Eric Koppisch, recommended that he read an issue of Spider-Man himself, Seagle read an issue featuring a team-up with Nova. Seagle migrated to reading Uncanny X-Men starting with issue #114 and this began Seagle's interest in comics. Seagle would later become the writer of Uncanny X-Men.

After Jack Seagle retired from the Air Force and took a job at KRDO, the family moved to a house near Garden of the Gods. Seagle attended Coronado High School. Seagle harbored a heavy interest in music, participating in the marching band, orchestra, jazz band, and chamber singers. He also competed on the speech and debate team. During the summers he worked at Flying W Ranch baking biscuits for a couple of years and then went to work as the villain two years in a row at Iron Springs Chateau, a job he characterized thus: "I was paid to insult people! Best job ever!" Seagle and Man of Action also served as co-executive producer duties on Disney XD's Avengers Assemble. Seagle and Man of Action co-created Zak Storm which airs on Netflix, and developed and executive produce Mega Man: Fully Charged, and Bakugan Battle Planet which both air on Cartoon Network in the U.S.

In November 2014, Disney in their first animated collaboration with Marvel Comics premiered Big Hero 6, a film based on the team co-created by Seagle and his Man of Action Entertainment partner Duncan Rouleau. Seagle's original comic book series House of Secrets was sold as a feature to Marc Canton/Warner Brothers, and Seagle wrote the screenplay (unproduced). The same week Seagle also sold and wrote the genre action pilot Carnival to FOX in association with Spelling Entertainment (unproduced), as well as and the female action/comedy Dot’s Bots to Mainframe Animation.

Seagle, along with Liesel Reinhart and Rafael Agustin, is a co-founder of Speak Theater Arts the Los Angeles-based theater company that produced the touring comedy N*W*C; Armeniamania with Sona Movsesian; and It Gets Better. In 2009, Seagle co-directed one of the national premiere live stage readings of The Laramie Project: an Epilogue performed by a celebrity cast and the Gay Men's Chorus of Los Angeles.

In 2025, Seagle was listed amongst the animation industry workers who had lost their homes due to the January 2025 Southern California wildfires.

Awards and nominations Seagle's work has received numerous Eisner Award nominations, including twice for best writer – in 1995 for his work on Sandman Mystery Theatre (DC/Vertigo) and in 1999 for the same title and his story "Drive By" in Oni Double Feature #10 (Oni Press). Seagle's work on American Virgin has been nominated twice for the GLAAD Meida Award for Best Comic Book. Seagle's run on Uncanny X-Men was awarded the Wizard Fan Award for Favorite Ongoing Series.