I ate an orange and shat out a seed! Thanks, Ivy.— Riddler

Riddler is the secondary antagonist of Harley Quinn. He is a minor antagonist in Season 1, and the central antagonist of Season 2. He's a former member of the Legion of Doom and the Injustice League.


Riddler is a bald male with a question mark tattoo on his forehead. He wears green overcoat with question marks and purple suit and gloves. He usually carries a staff shaped like a question mark.

During the episode Dye Hard, constant running in the Hamster Wheel, making him muscular.


Season 2

"New Gotham"

While terrorizing New Gotham, the Riddler suddenly found his own goons rebelling against him, forcing him to make common cause with the remnants of the Legion of Doom, forming the Injustice League to help them all regain their goons and carve up Gotham for themselves. He agreed with Bane that the need for goons was pressing, saying that "if everyone's a villain, then no one is".

"Riddle me this. Who's the biggest fool of all? You! For wasting your only chance to rule Gotham."

At the first Injustice League meeting with Harley, the Riddler mocked her as the reason why they banded together. He mocked Bane's complaints about being in a folding chair, saying that it was a joke at his expense. He also mocked Harley herself, saying that she would receive the "bad part" of new New Gotham once divided into territories. Harley rejected the idea, and so Mr. Freeze froze her into a block of ice. The Riddler and the rest of the Injustice League argue to kill Harley at this point, but Mr. Freeze convinces them to keep Harley as a trophy instead, sparing her life, so the Riddler simply mocks Harley within her ice block instead.

Powers & Abilities


  • Indomitable Will: Riddler is immune to Doctor Psycho's telepathic attacks.


  • Genius-level Intellect
  • Master Tactician
  • Engineering
  • Computer Operation
  • Peak Human Condition
  • Hand to Hand Combat (Basic)



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