Helmut Gruler
Iron Cross
- Also known as
Appearances
- Thunderbolts #38 — 2000-05-00
- Thunderbolts #40 — 2000-07-00
- Thunderbolts #41 — 2000-08-00
- Thunderbolts #49 — 2001-04-00
- Official Handbook of the Marvel Universe: Golden Age Marvel 2004 #[nn] — 2004-12-00
- All-New Official Handbook of the Marvel Universe A to Z #12 — 2007-02-00