Mutt (Stanley R. Perlmutter)

Stanley R. Perlmutter, codenamed Mutt, is a G.I. Joe infantry specialist and expert K-9 handler who serves alongside his loyal Doberman, Junkyard. Together they form a formidable team specializing in dog-assisted tracking and apprehension missions against Cobra.

Debuting in the thick of the Bronze Age in 1984, Mutt is a battle-tested member of the G.I. Joe universe, introduced by the legendary Larry Hama and Frank Springer in one of Marvel's most beloved action franchises. Over an extraordinary four-decade run — from the Reagan era all the way to 2025 — this character has kept remarkable company, sharing pages with heavy hitters like Hawk, Roadblock, and Clayton M. Abernathy across the flagship G.I. Joe: A Real American Hero series and even the crossover spectacle of G.I. Joe and the Transformers. With three key-issue appearances to their name, Mutt is no background player — collectors and longtime fans know to pay attention when this character shows up. If you love the deep bench of the G.I. Joe mythos and the era when Marvel was making military comics feel genuinely exciting, Mutt is absolutely worth tracking down.