Batgirl is the deuteragonist of Batman: The Killing Joke.
She is voiced by Tara Strong, who also voiced the character in Batman: The Animated Series and The New Batman Adventures.
Supporting characters: Helena Bertinelli • Misfit • Batman • Birds of Prey (Black Canary • Helena Bertinelli/Huntress • Gypsy • Hawkgirl • Lady Blackhawk • Dove • Big Barda) • Catwoman • James Gordon • Dick Grayson • Lucius Fox • Justice League • Alfred Pennyworth • Proxy • Harley Quinn • Tim Drake • Jason Todd • Damian Wayne • Supergirl • Leslie Thompkins • Alysia Yeoh • Renee Montoya
DC Extended Universe: Batgirl • James Gordon • Batman • Harley Quinn • Black Canary • Huntress • Joker • Suicide Squad
Titans: Dick Grayson/Nightwing • Bruce Wayne/Batman • Jason Todd/Red Hood/Robin II • Tim Drake/Robin III • Barbara Gordon • Slade Wilson/Deathstroke • Jonathan Crane/Scarecrow
Arrowverse: Helena Bertinelli/Huntress • Batwoman (Ryan Wilder) •Kate Kane (Arrowverse) • Slade Wilson/Deathstroke
DC Extended Universe: Bruce Wayne/Batman • Superman • Aquaman • Wonder Woman • Harley Quinn • Huntress (Helena Bertinelli) • Slade Wilson/Deathstroke
DC Animated Movie Universe: Bruce Wayne/Batman • Dick Grayson/Nightwing • Damian Wayne/Robin II • Raven • Superman
Batman: The Brave and the Bold Series Batman, Aquaman, Jaime Reyes/Blue Beetle, Green Arrow, Black Orchid, Ambush Bug, Green Lantern (Guy Gardner)
Arrowverse: Slade Wilson (Arrowverse) • Talia al Ghul • Lex Luthor
Titans: Slade Wilson/Deathstroke • Mercy Graves • Scarecrow • Joker • Penguin • Mad Hatter
DC Extended Universe: Lex Luthor • Doomsday • Deathstroke (Slade Wilson) • Lex Luthor • Steppenwolf • Darkseid • Parademons
The Batman (2022): Bruce Wayne/Batman (2022) • Selina Kyle/Catwoman