Duke
Duke (G.I. Joe, Conrad S. Hauser, Real American Hero) appears in 113 issues in grailworth's catalog, and was first published in 1983. First appearance: G.I. Joe, A Real American Hero #22 (1982), cover dated 1984.
First appearance
Every appearance we value
G. I. Joe in 3-D (1987) 2 issues
G.I. Joe Yearbook (1985) 1 issue
G.I. Joe, A Real American Hero (1982) 27 issues
G.I. Joe: America's Elite (2005) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.