Master Mold (Sentinel)
Master Mold (Sentinel) appears in 26 issues in grailworth's catalog, and was first published in 1965. First appearance: X-Men #15 (1963), cover dated 1965.
First appearance
Every appearance we value
Classic X-Men (1986) 1 issue
Incredible Hulk (1962) 1 issue
Marvel Super-Heroes (1990) 1 issue
New X-Men (2001) 2 issues
X-Factor (1986) 2 issues
X-Men: The Early Years (1994) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.