Born in 1966, Davis is primarily known for his work on DC Comics' Sandman Mystery Theatre and various Hellboy-related comics put out by Dark Horse. He has also done work for various roleplaying game company White Wolf, Inc.'s books as well has his own comics series, Nevermen and The Marquis.
A self-taught illustrator, Guy Davis began cartooning with a comic strip that ran in his hometown newspaper while he was still in school. After graduating, he continued working towards a career in comics, and in 1984, he created the tongue-in-cheek space opera Quonto of the Star Corps for the small press Fantastic Fanzine. Quonto was not a success, but the fanzine would become Arrow Comics and lead to work (for Davis) on the comic series The Realm. After a few years at Arrow, Davis' work attracted the editors of Caliber Press, who published his first creator-owned series — the Harvey Award-nominated Baker Street.
It was the success of Baker Street that got Davis work with DC Comics/Vertigo. He illustrated Sandman Mystery Theatre with Matt Wagner and Steven T. Seagle. Since that time, he has worked for Marvel Comics illustrating Deadline, and provided artwork and designs for the animated pilot of Mike Mignola's The Amazing Screw-On Head.
He has also produced numerous spot illustrations to the White Wolf role - playing game series.
At present, Davis continues to work, illustrating Mike Mignola's ongoing B.P.R.D. series, the Jerry Frissen's serial The Zombies That Ate the World for M étal Hurlant, and continuing his creator-owned series The Marquis following its move to Dark Horse. In 2010 he also drew his first Judge Dredd story, written by Rob Williams, with long-time coloring collaborator Dave Stewart.
All of this activity has not missed the attention of critics, and Davis has won numerous Eisner Awards, the comics industry's top award. Davis won the Eisner Award in
- 1997: Won "Best Serialized Story," for "Sand and Stars" (Starman #20-23) with James Robinson, Tony Harris, and Wade Von Grawbadger
- 2004: Won "Best Limited Series," for Fantastic Four: Unstable Molecules with James Sturm
- 2009: Won "Best Penciller/Inker or Penciller/Inker Team," for BPRD
Davis resides in Michigan, with his fiancée, painter and sculptor Rosemary Van Deuren. According to Davis' bio on his website, they have a cat, a rabbit, two ferrets, and a couple of horse skulls named Becky and Conrad.