Danny Fingeroth worked at Seaboard Comics and then Marvel Comics in the 1980s, where he edited the Spider-Man titles, Marvel Team-Up and Ka-Zar. As a writer, Fingeroth worked on Dazzler, the Deadly Foes of Spider-Man and Lethal Foes of Spider-Man mini-series, the Howard The Duck movie adaptation comic and various issues of several Marvel titles, including Avengers, Daredevil, Iron Man and What If?, and the Deathtrap: The Vault graphic novel. He also worked on Darkhawk, writing all fifty issues of the book between 1991 and 1995.
Fingeroth resigned from Marvel in 1995 to become editor-in-chief of Virtual Comics for Byron Preiss Multimedia and AOL. From there, Fingeroth served as senior vice president for creative development at Visionary Media, home of Showtime's WhirlGirl, for which he served as story editor.
He edited Write Now!, a magazine about the craft of comics writing which he created, which ran 20 issues from 2003 to 2009. He wrote the 2004 book Superman on the Couch: What Superheroes Really Tell Us About Ourselves and Our Society and The Rough Guide to Graphic Novels.