Sivana Jr.
son of Dr. Sivana
- Also known as Thaddeus Sivana Jr.
Son of Dr. Thaddeus Bodog Sivana. Brother of Georgia Sivana. Half-brother of Magnificus and Beautia Sivana. Arch-enemy of Captain Marvel Jr.
Appearances
- Gwandanaland Comics #1433
- Captain Marvel Jr. #34 (35) — 1946-01-11
- Captain Marvel Jr. #36 — 1946-03-00
- Captain Marvel Jr. #39 — 1946-06-00
- Captain Marvel Jr. #42 — 1946-09-00
- Captain Marvel Jr. #45 — 1946-12-00
- Captain Marvel Jr. #56 — 1947-12-00
- Captain Marvel Jr. #59 — 1948-03-00
- Captain Marvel Jr. #64 — 1948-08-00
- Captain Marvel Jr. #66 — 1948-11-00
- Captain Marvel Jr. #76 — 1949-08-00
- Captain Marvel Jr. #91 — 1950-11-10
- Captain Marvel Jr. #93 — 1951-01-00
- Captain Marvel Jr. #98 — 1951-06-10
- Captain Marvel Jr. #110 — 1952-06-10
- Captain Marvel Jr. #112 — 1952-08-00
- World's Finest Comics #273 — 1981-11-00
- Who's Who: The Definitive Directory of the DC Universe #21 — 1986-11-00
- Shazam!: The World's Mightiest Mortal #3 — 2021-07-00