Cesspool is a Cobra operative in the original G.I. Joe: A Real American Hero line. First released as a Hasbro carded action figure in 1991, with 1 distinct figure version produced across the 1982 to 1994 ARAH run.
Cesspool appears in 2 episode synopses across the Sunbow (1983 to 1987) and DiC (1989 to 1992) runs, first appearing in DiC's "The Sludge Factor, Part 2" (1991). Full screencap and continuity review pending.