Heinz Kruger
a spy, Marvel
- Also known as Agent X-9,Frederick Clemson,Special Agent Clemson
Appearances
- Captain America Comics #1 — 1941-03-00
- Captain America #109 — 1969-01-00
- Giant-Size Invaders #1 — 1975-06-00
- Captain America #215 — 1977-11-00
- Marvel Super Action #11 — 1978-12-00
- Captain America #255 — 1981-03-00
- Captain America [Shan-Lon] #[2] — 1990-00-00
- Captain America [War and Remembrance] #[nn] — 1990-00-00
- Captain America: The Classic Years #1 — 1990-06-00
- Fantastic Firsts #[nn] — 2002-01-00
- Avengers: The Initiative Annual #1 — 2008-01-00
- Captain America: Reborn #2 — 2009-10-00
- Captain America: Reborn #[nn] — 2010-04-07
- Captain America: Reborn #[nn] — 2010-09-22
- Captain America: War & Remembrance #[nn] — 2010-13-00
- Steve Rogers: Super-Soldier #[nn] — 2011-03-00
- Avengers: The Initiative - The Complete Collection #1 — 2017-03-15
- Marvel Visionaries: Jack Kirby #[nn] — 2019-09-11
- Captain America Anniversary Tribute #1 — 2021-05-00
- Giant-Size Marvel Omnibus #[nn] — 2025-05-28