Mandrake began working for
DC Comics where he drew backup stories for the
Sgt. Rock title. In a 2001 interview, he recalled "finally landing my first real work, that was a two part story in DC's
New Talent Showcase. Once again with my old buddy L.B. at the writers helm on our pirate epic 'Skydogs'." and the
Film Freak in
Batman #395 (May 1986). Mandrake was one of the contributors to the
DC Challenge limited series in 1986 after finishing his run on
Batman. In 1992, Mandrake and writer John Ostrander launched
The Spectre series at DC Comics. In issue #54 (June 1997), the creative team introduced the character Michael Holt as a new version of
Mister Terrific. Following the end of
The Spectre series, they moved onto a
Martian Manhunter series. In 2001, he worked with writer
Dan Mishkin on the short lived series
Creeps and in 2006 on the children's book ''The Forest King: Woodlark's Shadow
. In 2007, a story-arc titled "Grotesk" reuniting Ostrander and Mandrake appeared in Batman issues #659-662. Mandrake drew the DC Retroactive: Batman - The '70s'' one-shot (Sept. 2011) and a revival of
Marv Wolfman's
Night Force series (May–Nov. 2012). He collaborated with
J. Michael Straczynski on the
Sidekick series in 2013–2014. ==Awards==