Marvel Boy (Thelius bioduplicate)
Marvel Boy (Thelius bioduplicate) appears in 4 issues in grailworth's catalog, and was first published in 1991. First appearance: Quasar #26 (1989), cover dated 1991.
First appearance
Every appearance we value
Quasar (1989) 4 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.