Nega-Man (Richard Janus, Marvel)
Nega-Man (Richard Janus, Marvel) appears in 9 issues in grailworth's catalog, and was first published in 1971.
Every appearance we value
Fantastic Four (1961) 3 issues
Fantastic Four (1998) 3 issues
Marvel's Greatest Comics (1969) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.