She is the wife of Thomas Wayne and the mother of Bruce Wayne.
Joe Chill murders Bruce Wayne, rather than the boy's parents. Martha Wayne was so traumatized by the event she becomes the Joker. Her husband Thomas wished to gain revenge for his son's murder and becomes this reality's version of Batman. She is working with her own version of Harley Quinn called Yo-Yo. She becomes the archenemy of her husband, Batman.
- This version of the character is exclusive to the continuity of the film Justice League: The Flashpoint Paradox and is an adaptation of Martha Wayne. The original character was created by Bill Finger and Bob Kane and first appeared in Detective Comics #33.
- Martha Wayne was voiced by Grey DeLisle.
- 1 Appearances of Martha Kane (Flashpoint Paradox)
- 2 Images featuring Martha Kane (Flashpoint Paradox)
- Quotations by or about Martha Kane (Flashpoint Paradox)
- Character Gallery: Martha Kane (Flashpoint Paradox)