Thakorr
Thakorr (Marvel, Sub-Mariner's maternal grandfather) appears in 12 issues in grailworth's catalog, and was first published in 1939. First appearance (unnamed): Motion Picture Funnies Weekly #1 (1939), cover dated 1939.
First appearance
Every appearance we value
Avengers (1963) 1 issue
Fantastic Four (1961) 1 issue
Giant-Size Invaders (1975) 1 issue
The Human Torch (1940) 1 issue
Marvel Feature (1971) 1 issue
Namor (2003) 1 issue
Namor (2024) 1 issue
Namor, the Sub-Mariner (1990) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.