Korvac
Korvac (active on Earth-616, born on Earth-691) appears in 28 issues in grailworth's catalog, and was first published in 1975. First appearance: Giant-Size Defenders #3 (1974), cover dated 1975.
First appearance
Origin
Deaths
Every appearance we value
Avengers (1998) 1 issue
Captain America (1998) 2 issues
Fantastic Four (1961) 1 issue
Giant-Size Defenders (1974) 1 issue
Guardians 3000 (2014) 1 issue
Marvel Comics (2019) 1 issue
Thor (1966) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.