Dennis "Denny" O'Neil was a comic book writer and editor best known for his work for Marvel Comics and DC Comics from the 1960s through the 1990s, and Group Editor for the Batman family of titles until his retirement. His best-known works include Green Lantern/Green Arrow and Batman with Neal Adams, The Shadow with Michael Kaluta and The Question with Denys Cowan. As an editor, he is principally known for editing the various Batman titles. From 2013 unti his death, he sat on the board of directors of the charity The Hero Initiative and served on its Disbursement Committee.

Librarian note: There is more than one author in the GoodReads database with this name John Lindley Byrne is a British-born Canadian-American author and artist of comic books. Since the mid-1970s, Byrne has worked on nearly every major American superhero. Byrne's better-known work has been on Marvel Comics' X-Men and Fantastic Four and the 1986 relaunch of DC Comics’ Superman franchise. Coming into the comics profession exclusively as a penciler, Byrne began co-plotting the X-Men comics during his tenure on them, and launched his writing career in earnest with Fantastic Four (where he also started inking his own pencils). During the 1990s he produced a number of creator-owned works, including Next Men and Danger Unlimited. He also wrote the first issues of Mike Mignola's Hellboy series and produced a number of Star Trek comics for IDW Publishing.