Batman: The Animated Series
Heart of Steel
Season 1, Episode 39 · Aired 1992-11-16

Synopsis
Several robberies take place at major companies, including Wayne Enterprises, and Bruce Wayne, as Batman, discovers the thief to be a mechanical briefcase. Bruce meets with his old friend, Karl Rossum, an expert in robotics who lost his daughter to a vehicle accident years ago. He also meets Rossum's assistant, Randa Duane, and Rossum's ultimate creation: a prototype A.I. known as Holographic Analytical Reciprocating Digital Computer (H.A.R.D.A.C.) Bruce invites Duane to dinner, and around the same time, certain civilians start acting strangely. Most surprising is when Duane unexpectedly leaves Wayne Manor while Bruce is on the phone, and the entire Batcave turns on Batman.
In the series
This episode is part of Batman: The Animated Series (1992–1995) on Fox Kids.
Art-deco Gotham with Conroy’s growl — kids’ TV that adults claimed.
Key cast
- Kevin Conroy as Bruce Wayne / Batman
- Mark Hamill as The Joker
- Efrem Zimbalist Jr. as Alfred
- Arleen Sorkin as Harley Quinn
- Loren Lester as Dick Grayson / Robin