Arno (Marvel, Atlantean)
Arno (Marvel, Atlantean) appears in 3 issues in grailworth's catalog, and was first published in 1976. First appearance: Avengers #154 (1963), cover dated 1976.
First appearance
Every appearance we value
Avengers (1963) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.