Gotham Girls - Season 3 - Eps 10: Cold Hands, Cold Heart
The Commissioner, twitching in the Batsignal, explodes into a pile of gears and wheels and microchips: He’s a Robot! Who is behind this robotic Commissioner? None other than the Commissioner’s supposedly loyal assistant, Dora Smithy. Sister to Nora. Sister-in-law to Mr. Freeze. The Robotic Replacement was designed to crack down on the costumed villains – like Mr. Freeze – whom Dora blames for her sister’s fate. In a final pitched battle in an old Mr. Freeze hideout, Dora falls into a vat of cryo-solution and is turned into a female version of Mr. Freeze. The very thing she hated.
About Gotham Girls

Title: Gotham Girls
First Air Date: 2000-07-27
Last Air Date: 2002-11-19
Status: Ended
Rating: 6.4/10 (from 18 votes)
Language: EN
Seasons: 4
Total Episodes: 31
Network: Unknown
Genres: Drama, Animation, Comedy, Action & Adventure, Crime
Production Companies: Warner Bros. Animation, Noodle Soup Productions, DC
Synopsis
A Flash animation series staring Harley Quinn, Poison Ivy, Batgirl, Catwoman and Zatanna in short stories about the daily lives of the characters.
Cast

Arleen Sorkin
Harley Quinn / Dr. Harleen Quinzel (voice)

Diane Pershing
Poison Ivy / Dr. Pamela Isley (voice)

Tara Strong
Batgirl / Barbara Gordon (voice)

Adrienne Barbeau
Catwoman / Selina Kyle / Renée Montoya (voice)