Birds of Prey - Season 1 - Eps 12: Feat of Clay
Citizens of New Gotham are being turned into clay by a villain whose crimes are similar to those of Clayface, the master of shape-shifting who has been in Arkham Asylum for many years. Helena confronts Clayface and learns that his son, Chris, is responsible for the new rash of crimes. She also finds out who was responsible for her mother's murder.
About Birds of Prey

Title: Birds of Prey
First Air Date: 2002-10-09
Last Air Date: 2003-02-19
Status: Canceled
Rating: 6/10 (from 81 votes)
Language: EN
Seasons: 2
Total Episodes: 13
Network: The WB
Genres: Drama, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Warner Bros. Television, Tollin/Robbins Productions, DC
Synopsis
The series is set in New Gotham City, several years after it has been apparently abandoned by Batman. In his absence, Huntress, Oracle and Dinah are now the protectors of New Gotham: the Birds of Prey, and had taken over his war on crime. They are joined by Alfred Pennyworth, who serves Helena as she is heir to the Wayne estate; and Detective Jesse Reese, a police officer confronted with crimes and abilities he cannot explain. A central feature of the series is the concept of metahumans: individuals born with powers that cannot be explained. No two metahumans have the same abilities (unless hereditary), and there exists a whole subculture of metahuman society that the outside world knows nothing about.
Cast

Ashley Scott
Helena Kyle / Huntress

Dina Meyer
Barbara Gordon / Batgirl / Oracle

Rachel Skarsten
Dinah Lance / Black Canary

Shemar Moore
Jesse Reese

Ian Abercrombie
Alfred Pennyworth

Mia Sara
Harleen Quinzel / Harley Quinn