Fen (Marvel, Sub-Mariner's mother)
Fen (Marvel, Sub-Mariner's mother) appears in 24 issues in grailworth's catalog, and was first published in 1939. First appearance (also in flashback to 1920): Motion Picture Funnies Weekly #1 (1939), cover dated 1939. Key issues with Fen include Marvel Super-Heroes #18 (1967).
First appearance
Key issues
Every appearance we value
Avengers (1963) 1 issue
Defenders (2012) 1 issue
Fantastic Four (1961) 2 issues
Giant-Size Defenders (1974) 1 issue
Marvel Feature (1971) 1 issue
Marvel Mystery Comics (1939) 1 issue
Marvel Super-Heroes (1967) 4 issues
Namor (2024) 2 issues
Namor, the Sub-Mariner (1990) 1 issue
Sub-Mariner (1954) 1 issue
Tales to Astonish (1959) 1 issue
Young Men (1950) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.