Brian Augustyn was an American comic book editor and writer. He often worked as editor or co-writer with writer Mark Waid, such as on The Flash in the 1990s. He wrote Gotham by Gaslight – which imagines Batman tracking Jack the Ripper – the prototype of DC's Elseworlds imprint, which featured versions of their characters in alternate settings.

Mark Waid is an American comic book writer best known for his work on DC Comics titles The Flash, Kingdom Come and Superman: Birthright as well as his work on Captain America, Fantastic Four and Daredevil for Marvel. Other comics publishers he has done work for include Fantagraphics, Event, Top Cow, Dynamite, and Archie Comics.