Renny
Renny (Colonel John Renwick, from Doc Savage) appears in 7 issues in grailworth's catalog, and was first published in 1941. First appearance: Doc Savage Comics #3 (1940), cover dated 1941.
First appearance
Every appearance we value
Doc Savage Annual (1989) 1 issue
Doc Savage Comics (1940) 1 issue
Superman (1987) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.