Question: After working for DC Comics, Roy Thomas then became editor-in-chief at which comic book company?
Sentence (from "Roy Thomas"): Thomas is also known for his championing of Golden Age comic-book heroes – particularly the 1940s superhero team the Justice Society of America – and for lengthy writing stints on Marvel's "X-Men" and "The Avengers", and DC Comics' "All-Star Squadron", among other titles.
Relevant evidence: No