Wonder Man (Simon Williams) is a fictional character, a superhero (originally a supervillain) that appears in comic books published by Marvel Comics. Created by writer Stan Lee and artists Don Heck and Jack Kirby, he first appeared in The Avengers #9 (Oct. 1964).
Wonder Man debuted in the superhero-team title The Avengers #9 (cover-dated Oct. 1964), and after ostensibly dying in that issue was not seen again until The Avengers #102 (Aug. 1972), where he made a cameo appearance in a comatose state. Wonder Man's body was revived by the villain Kang in The Avengers #131-132 (Jan.–Feb. 1975), and then again by the Black Talon in The Avengers #152 (Oct. 1976), and finally by the Living Laser in The Avengers Annual #6 (1976). After this last encounter, Wonder Man finally recovered his faculties and joined the Avengers in a full-time capacity in Avengers #160 (June 1977).
Marvel Comics' then-publisher Stan Lee said in 1978, "You know, years ago we brought out Wonder Man, and [DC Comics] sued us because they had Wonder Woman, and... I said okay, I'll discontinue Wonder Man. And all of a sudden they've got Power Girl [after Marvel had introduced Power Man]. Oh, boy. How unfair."