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Appearances
Harley Quinn
Main cast, played by Jim Rash
- Episode 2x11: A Fight Worth Fighting For (Jun 12, 2020)
- Episode 2x12: Lovers' Quarrel (Jun 19, 2020)
Guest cast, played by Jim Rash
- Episode 1x01: Til Death Do Us Part (Nov 29, 2019)
- Episode 1x07: The Line (Jan 10, 2020)
- Episode 1x11: Harley Quinn Highway (Feb 7, 2020)
- Episode 2x01: New Gotham (Apr 3, 2020)
- Episode 2x02: Riddle U (Apr 10, 2020)
- Episode 2x03: Trapped (Apr 17, 2020)
- Episode 2x06: All the Best Inmates Have Daddy Issues (May 8, 2020)
- Episode 2x10: Dye Hard (Jun 5, 2020)
- Episode 3x02: There's No Ivy in Team (Jul 28, 2022)
- Episode 3x03: The 83rd Annual Villy Awards (Jul 28, 2022)
- Episode S03 Special: Harley Quinn: A Very Problematic Valentine's Day Special (Feb 9, 2023)
- Episode 4x01: Gotham's Hottest Hotties (Jul 27, 2023)