Leap-Frog
Leap-Frog (Vincent Patilio, Marvel's first Leap-Frog) appears in 9 issues in grailworth's catalog, and was first published in 1967. First appearance: Daredevil #25 (1964), cover dated 1967.
First appearance
Every appearance we value
Amazing Spider-Man (2018) 1 issue
Daredevil (1964) 3 issues
The Defenders (1972) 1 issue
Spider-Man '94 (2025) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.