Richard Janus (Nega-Man, Marvel)
Richard Janus (Nega-Man, Marvel) appears in 5 issues in grailworth's catalog, and was first published in 1971. First appearance: Fantastic Four #107 (1961), cover dated 1971.
First appearance
Every appearance we value
Fantastic Four (1961) 1 issue
Fantastic Four (1998) 2 issues
Marvel's Greatest Comics (1969) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.