Prester John
Prester John (Marvel) appears in 15 issues in grailworth's catalog, and was first published in 1966. First appearance: Fantastic Four #54 (1961), cover dated 1966.
First appearance
Every appearance we value
Avengers (1963) 1 issue
The Defenders (1972) 1 issue
Defenders (2012) 2 issues
Fantastic Four (1961) 1 issue
Marvel Two-in-One (1974) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.