King Cobra (Klaus Voorhees)
King Cobra (Klaus Voorhees) appears in 17 issues in grailworth's catalog, and was first published in 1990. First appearance: Captain America #367 (1968), cover dated 1990.
First appearance
Every appearance we value
Avengers (2018) 1 issue
Avengers: The Initiative (2007) 1 issue
Batman '66 (2013) 1 issue
Captain America (2023) 1 issue
Immortal Thor (2023) 1 issue
Thunderbolts (2006) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.