Milo Murphy’s Law/Billy and Mandy

Grim as Milo

Phineas as Billy

Ferb as Irwin

Melissa as Gladys

Zack as Harold

Mr. Mulcher as Boogey-Man

Dr. Zone as Himself

Other Characters of Billy and Mandy as Themselves

Other Characters of Milo Murphy’s Law as Themselves

Major Monogram as Horror

Perry as Himself

Dr. Doofenshmirtz as Himself

Cavendish as Himself