During a family reunion, they stumbled upon Harley Quinn's Crew committing a heist. In order for there to be no witnesses, Queen of Fables brutally murdered the family. Jason only survived by hiding under bench, with Harley Quinn letting him because she thought he was a young child after only seeing the back of his head. Distraught, he attempted to commit suicide by jumping into an electrical fence. But as the fence was a part of S.T.A.R. Labs, it instead gave him electrical-based powers. He confronted Harley and her crew, intending to kill Queen of Fables, but was ultimately killed by her instead.
- This version of the character is exclusive to the continuity of the television series Harley Quinn and is an adaptation of Jason Praxis. The original character was created by Doug Moench and Tom Artis and first appeared in Spectre (Volume 2) #24.
- Jason Praxis was voiced by Phil LaMarr.
- 1 Appearances of Jason Praxis (Harley Quinn TV Series)
- 1 Images featuring Jason Praxis (Harley Quinn TV Series)
- 1 Quotations by or about Jason Praxis (Harley Quinn TV Series)
- Character Gallery: Jason Praxis (Harley Quinn TV Series)