Sis was the "daughter" of the Nuclear Family.
- This version of the character is exclusive to the continuity of the television series Justice League Action and is an adaptation of Sis. The original character was created by Mike W. Barr and Jim Aparo and first appeared in Outsiders #1.
- Sis was voiced by Rachel Kimsey.
- 1 Appearances of Sis (Justice League Action)
- 2 Images featuring Sis (Justice League Action)
- Quotations by or about Sis (Justice League Action)
- Character Gallery: Sis (Justice League Action)
|Firestorm Villain(s) |
This character, team or organization, is or was primarily an enemy of Firestorm and any of his supporting cast or members of the Firestorm Matrix. This template will categorize articles that include it into the "Firestorm Villains category."