Lucky Is one of the most minor characters in The Grim adventures of Billy and Mandy. Being his only appearance was in the episode, "Who Killed Who".
Mandy found Lucky after going into the house of Mrs. Doolin. Later finding out that Grim had lost Ms.Doolin in a bet for Lucky.
Ms.Doolin had beat Grim numerous amounts of times quote, Ms.Doolin: "In fact I have been beating him in just about everything!" Including "Death" meaning she died before grim could take her life.