Interloper (Betilakk, Marvel)
Interloper (Betilakk, Marvel) appears in 10 issues in grailworth's catalog, and was first published in 1985. First appearance: The Defenders #147 (1972), cover dated 1985.
First appearance
Every appearance we value
The Defenders (1972) 4 issues
Marvel Comics Presents (1988) 1 issue
Strange Tales (1987) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.