Steamboat Bill
Captain Marvel's sidekick
- Also known as Steamboat
Appearances
- Whiz Comics #29 — 1942-04-17
- Captain Marvel Adventures #21 — 1943-02-12
- Captain Marvel Adventures #22 — 1943-03-26
- Captain Marvel Adventures #23 — 1943-04-28
- Captain Marvel Adventures #45 — 1945-04-00
- Captain Marvel Adventures #46 — 1945-05-00
- Gwandanaland Comics #1679 — 2018-01-15