Freeman's comic-book illustrating career began with Richard Comely’s independent Canadian publication, Captain Canuck. He subsequently worked on several superhero comics, such as DC Comics' Green Lantern and Aquaman, and Marvel Comics' Jack of Hearts, and The Avengers. He drew a story in Batman Annual #11, written by Alan Moore.[3] In addition, he was one of several rotating artists on the short-lived horror comic anthology Wasteland by writer and actor Del Close and writer John Ostrander. Freeman alternated with artists Don Simpson, William Messner-Loebs, and David Lloyd on drawing one of the three horror stories in each issue, the fourth artist providing the cover. Freeman also illustrated the short comic Blizzard House, written by Nicholas Burns and published in the Arctic Comics anthology in 2016.[4]
In 1991, Freeman co-founded Digital Chameleon, a Winnipeg-based comics coloring and inking studio.
^Manning, Matthew K. (2014). "1980s". In Dougall, Alastair (ed.). Batman: A Visual History. Dorling Kindersley. p. 169. ISBN978-1465424563. Alan Moore crafted yet another timeless tale in this annual. It featured the art of George Freeman and starred Clayface III.