Olaf (of the Blackhawks)
Olaf (of the Blackhawks) appears in 65 issues in grailworth's catalog, and was first published in 1941. First appearance: Military Comics #2 (1941), cover dated 1941.
First appearance
Every appearance we value
All-Star Squadron (1981) 3 issues
Blackhawk (1944) 4 issues
Blackhawk (1957) 42 issues
The Brave and the Bold (2007) 2 issues
Modern Comics (1945) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.