Mindworm (William Turner)
Mindworm (William Turner) appears in 8 issues in grailworth's catalog, and was first published in 1974. First appearance: Amazing Spider-Man #138 (1963), cover dated 1974.
First appearance
Origin
Every appearance we value
Amazing Spider-Man (1963) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.