Professor Appel
Crimson Guard, from G.I. Joe
- Also known as
Appearances
- G.I. Joe, a Real American Hero #38 — 1985-08-00
- G.I. Joe, a Real American Hero #40 — 1985-10-00
- G.I. Joe, a Real American Hero #41 — 1985-11-00
- G.I. Joe, a Real American Hero #45 — 1986-03-00
- G.I. Joe, a Real American Hero #46 — 1986-04-00