The Grim Adventures of Billy and Mandy cast is including:
Grey DeLisle as Mandy (voice) (184 episodes), Greg Eagles as Grim (voice) (184 episodes), Richard Steven Horvitz as Billy (voice) (184 episodes), Vanessa Marshall as Irwin (voice) (184 episodes), Rachael MacFarlane as Mindy (4 episodes), Dee Bradley Baker as (5 episodes), Diedrich Bader as (2 episodes), Phil LaMarr as Hector Con Carne (3 episodes), Billy West as (3 episodes), Armin Shimerman as General Skarr (5 episodes), Quinton Flynn as (4 episodes), David Warner as (2 episodes)