Dumog (Typically of Earth-691)
Dumog (Typically of Earth-691) appears in 3 issues in grailworth's catalog, and was first published in 1974. First appearance: Giant-Size Defenders #3 (1974), cover dated 1975.
First appearance
Every appearance we value
Avengers (1963) 1 issue
Giant-Size Defenders (1974) 1 issue
Thor (1966) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.