History of character has not yet been written.
- This version of Thaddeus Sivana, Jr., including all history and corresponding appearances, was initially erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. However the ending of Convergence retroactively prevented that collapse, saving all the alternate realities, though in an "evolved" form. Even though versions of the character may have since appeared, this information does not apply to those versions.
- Shazam #1 was Thaddeus Sivana, Jr.'s first appearance in a comic published by DC Comics.
- 15 Appearances of Thaddeus Sivana, Jr. (Earth-S)
- 3 Images featuring Thaddeus Sivana, Jr. (Earth-S)
- 2 Quotations by or about Thaddeus Sivana, Jr. (Earth-S)
- Character Gallery: Thaddeus Sivana, Jr. (Earth-S)
This character is or was primarily an enemy of Captain Marvel, the Wizard Shazam, or any of the extended members of the Marvel Family. This template will categorize articles that include it into the category "Marvel Family Villains."