Greg is a writer, editor, and story consultant focused on creating comic books and graphic novels.

His career began at DC Comics as a summer intern and joined the Vertigo imprint as part of the editorial staff in 2010. At Vertigo, he worked on a number of titles including: DIAL H, The Unwritten, FBP: Federal Bureau of Physics, Sweet Tooth, The Kitchen, Fables (and the spin-off series Fairest), American Vampire, 100 Bullets: Brother Lono and many others.

In 2015, Greg left Vertigo to begin work as a freelance editor and his current clients include: OFFSET COMICS, 3 FLOYDS (published by IMAGE COMICS) and EINHORN’S EPIC PRODUCTIONS.

As a writer, Greg formed the Poison Press collective with Monica Gallagher and Tim Fish. In 2018, they debuted a new 12-page historical gay romance comic at Thought Bubble in Leeds, England.

Greg collaborated with Tim Fish, Michael DiMotta, Sal Cipriano and Will Dennis on a story for the WHERE WE LIVE anthology by Image Comics benefiting the victims of the Las Vegas shooting.