Sergeant Duffy
Steve Rogers' WWII sergeant
- Also known as Sergeant Thaddeus Duffy,Sgt. Michael Joseph Duffy
Appearances
- Captain America Comics #1 — 1941-03-00
- Captain America Comics #2 — 1941-04-00
- Captain America Comics #3 — 1941-05-00
- Captain America Comics #4 — 1941-06-00
- All-Winners Comics #1 — 1941-07-00
- Captain America Comics #5 — 1941-08-00
- Captain America Comics #6 — 1941-09-00
- Captain America Comics #7 — 1941-10-00
- Captain America Comics #8 — 1941-11-00
- Captain America Comics #9 — 1941-12-00
- Captain America Comics #10 — 1942-01-00
- Captain America Comics #11 — 1942-02-00
- Captain America Comics #12 — 1942-03-00
- Captain America Comics #13 — 1942-04-00
- Captain America Comics #14 — 1942-05-00
- Captain America Comics #15 — 1942-06-00
- Captain America Comics #16 — 1942-07-00
- Captain America Comics #17 — 1942-08-00
- Captain America Comics #18 — 1942-09-00
- Tales of Suspense #64 — 1965-04-00
- Tales of Suspense #70 — 1965-10-00
- Captain America #109 — 1969-01-00
- Captain America #139 — 1971-07-00
- Marvel Super Action #11 — 1978-12-00
- Titan Pocket Book #5 — 1980-00-00
- Captain America #255 — 1981-03-00
- Captain America #256 — 1981-04-00
- 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
- Captain America: The Classic Years #2 — 1990-06-00
- Captain America: Sentinel of Liberty #12 — 1999-08-00
- Fantastic Firsts #[nn] — 2002-01-00
- Captain America #50 — 2009-07-00
- Captain America: War & Remembrance #[nn] — 2010-13-00
- Captain America: Sentinel of Liberty #[nn] — 2011-02-16
- Captain America Comics #1: 70th Anniversary Special #[nn] — 2011-05-00
- Marvel Platinum: The Definitive Captain America Reloaded #[nn] — 2014-00-00
- Captain America Omnibus #1 [Third Edition] — 2024-05-01