Murphy was a dimwitted henchmen who worked for The Joker in Batman: The Animated Series.
Murphy worked for the Joker when he met Sidney Debris. The Joker tries to prove Batman is alive by pulling a robbery and Murphy asked a stupid why. The Joker replied that so he can prove that Batman is still alive and pushed Murphy in front of the hyenas. Murphy later got patched from his bruises and learned his lesson. He was one of the henchman stalling the police when they show up. He went to the Ace Chemical plant after Batman didn't show up and put Sidney into coffin rolling down to a vat of acid.