Gordon Keefer (Monk, Ape-Man)
Gordon Keefer (Monk, Ape-Man) appears in 11 issues in grailworth's catalog, and was first published in 1965. First appearance: Avengers #12 (1963), cover dated 1965. Key issues with Gordon Keefer include X-Men #94 (1963).
First appearance
Key issues
Every appearance we value
Avengers (1963) 1 issue
Classic X-Men (1986) 3 issues
Daredevil (1964) 2 issues
X-Men (1963) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.