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Appearances
Harley Quinn
Main cast, played by Jason Alexander
- Episode 1x04: Finding Mr. Right (Dec 20, 2019)
- Episode 1x05: Being Harley Quinn (Dec 27, 2019)
- Episode 1x06: You're a Damn Good Cop, Jim Gordon (Jan 3, 2020)
- Episode 1x08: L.O.D.R.S.V.P (Jan 17, 2020)
- Episode 1x10: Bensonhurst (Jan 31, 2020)
- Episode 1x11: Harley Quinn Highway (Feb 7, 2020)
- Episode 1x12: Devil's Snare (Feb 14, 2020)
- Episode 1x13: The Final Joke (Feb 21, 2020)
- Episode 2x01: New Gotham (Apr 3, 2020)
- Episode 2x03: Trapped (Apr 17, 2020)
- Episode 2x10: Dye Hard (Jun 5, 2020)
- Episode 2x12: Lovers' Quarrel (Jun 19, 2020)
- Episode 3x04: A Thief, A Mole, An Orgy (Aug 4, 2022)