Roberto Aguirre-Sacasa is an American playwright, screenwriter, and comic book writer best known for his work for Marvel Comics and for the television series Glee, Big Love, Riverdale, and Chilling Adventures of Sabrina. He is Chief Creative Officer of Archie Comics.
Aguirre-Sacasa grew up liking comic books, recalling in 2003, "My mom would take us out to the 7-Eleven on River Road during the summer, and we would get Slurpees and buy comics off the spinning rack. I would read them all over and over again, and draw my own pictures and stuff."
He began writing for Marvel Comics, he explained, when "Marvel hired an editor to find new writers, and they hired her from a theatrical agency. So she started calling theaters and asking if they knew any playwrights who might be good for comic books. A couple of different theaters said she should look at me. So she called me, I sent her a couple of my plays and she said 'Great, would you like to pitch on a couple of comic books in the works?'"
His first submissions were "not what [they were] interested in for the character[s]" but eventually he was assigned an 11-page Fantastic Four story, "The True Meaning of...," for the Marvel Holiday Special 2004. He went on to write Fantastic Four stories in Marvel Knights 4, a spinoff of that superhero team's long-running title; and stories for Nightcrawler vol. 3; The Sensational Spider-Man vol. 2; and Dead of Night featuring Man-Thing.
In May 2008 Aguirre-Sacasa returned to the Fantastic Four with a miniseries tie-in to the company-wide "Secret Invasion" storyline concerning a years-long infiltration of Earth by the shape-shifting alien race, the Skrulls,and an Angel Revelations miniseries with artists Barry Kitson and Adam Polina, respectively. He adapted for comics the Stephen King novel The Stand.

In 2013, he created Afterlife with Archie, depicting Archie Andrews in the midst of a zombie apocalypse; the book's success led to Aguirre-Sacasa being named Archie Comics' chief creative officer.