He is best known to American comic book readers as a writer and editor for Marvel Comics, where he wrote the licensed comic book series G.I. Joe: A Real American Hero, based on the Hasbro toyline. He has also written for the series Wolverine, Nth Man: The Ultimate Ninja, and Elektra. He co-created the character Bucky O'Hare, which was developed into a comic book, a toy line and television cartoon. During the 1970s, he was seen in minor roles on the TV shows M*A*S*H and Saturday Night Live, and he appeared on Broadway in two different roles in the original 1976 production of Stephen Sondheim's Pacific Overtures.
Other comics Hama has written include Wolverine, Before the Fantastic Four: Ben Grimm and Logan, the X-Men brand extension Generation X for Marvel; and Batman stories for DC Comics. He wrote filecards for Hasbro's line of sci-fi/police action figures, C.O.P.S. 'n' Crooks and contributed to the relaunch of the G.I. Joe toyline and comicbook in 2000.
Hama is known as the "father" of the 3 3/4" GI Joe figures (he had nothing to do with the 12" GI Joe of the 1960-1970s). He came up with the names for the figures, vehicles and wrote the filecards that came on the back of the cards. He also wrote all 155 issues of the GI Joe comic book which spanned from June 1982 to December 1994.
Mr. Hama will be doing commissions at ThunderCon, and charges nothing for photos and autographs.