- This version of the character is exclusive to the continuity of the comic book stories considered to be set on Earth-21. It is an adaptation of Carol Ferris. The original character was created by John Broome and Gil Kane and first appeared in Showcase #22.
- In the animated adaption of Justice League: The New Frontier Carol Ferris was voiced by Brooke Shields.
- 5 Appearances of Carol Ferris (Earth-21)
- 2 Images featuring Carol Ferris (Earth-21)
- Quotations by or about Carol Ferris (Earth-21)
- Character Gallery: Carol Ferris (Earth-21)
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