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Appearances
Harley Quinn
Main cast, played by Alan Tudyk
- Episode 1x01: Til Death Do Us Part (Nov 29, 2019)
- Episode 1x02: A High Bar (Dec 6, 2019)
- Episode 1x03: So You Need a Crew? (Dec 13, 2019)
- Episode 1x04: Finding Mr. Right (Dec 20, 2019)
- Episode 1x05: Being Harley Quinn (Dec 27, 2019)
- Episode 1x08: L.O.D.R.S.V.P (Jan 17, 2020)
- Episode 1x09: A Seat at the Table (Jan 24, 2020)
- Episode 1x12: Devil's Snare (Feb 14, 2020)
- Episode 1x13: The Final Joke (Feb 21, 2020)
- Episode 2x06: All the Best Inmates Have Daddy Issues (May 8, 2020)
- Episode 2x10: Dye Hard (Jun 5, 2020)
- Episode 2x11: A Fight Worth Fighting For (Jun 12, 2020)
- Episode 2x12: Lovers' Quarrel (Jun 19, 2020)
- Episode 3x03: The 83rd Annual Villy Awards (Jul 28, 2022)
- Episode 3x04: A Thief, A Mole, An Orgy (Aug 4, 2022)
- Episode 3x06: Joker: The Killing Vote (Aug 18, 2022)
- Episode 3x08: Batman Begins Forever (Sep 1, 2022)
- Episode 3x09: Climax at Jazzapajizza (Sep 8, 2022)
- Episode 3x10: The Horse and The Sparrow (Sep 15, 2022)
- Episode 4x09: Potato Based Cloning Incident (Sep 7, 2023)
- Episode 4x10: Killer's Block (Sep 14, 2023)
Guest cast, played by Alan Tudyk
- Episode 4x02: B.I.T.C.H (Jul 27, 2023)
- Episode 4x04: The First Person to Come Back from a Business Conference Without Chlamydia (Aug 3, 2023)
- Episode 4x06: Metamorphosis (Aug 17, 2023)
- Episode 4x07: The Most Culturally Impactful Film Franchise of All Time (Aug 24, 2023)