|Real world information|
|Appears in||The Grim Adventures of Billy & Mandy|
|First appearance||Attack of the Clowns|
Clowns are Billy’s worst fear and mainly appear in one episode, "Attack of the Clowns", in which Grim and Mandy try to cure Billy’s Coulrophobia. The clowns also make an appearance in The Grim Adventures of Billy and Mandy Video Game.