Copperhead
Copperhead (G.I. Joe, Real American Hero [Marvel]) appears in 8 issues in grailworth's catalog, and was first published in 1983. First appearance: G.I. Joe, A Real American Hero #7 (1982), cover dated 1983.
First appearance
Deaths
Every appearance we value
G.I. Joe (2001) 1 issue
G.I. Joe (2004) 1 issue
Tales of G.I. Joe (1988) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.