Odd Squad villains/The Grim Adventures of Billy & Mandy

Version 1
Agent Otto as Grim Reaper

Odd Todd as Billy

Shapeshifter as Mandy

Agent Otis as Irwin

Version 2
Agent Olive as Grim Reaper

Shapeshifter as Billy

Odd Todd as Mandy

Agent Otto as Irwin

Ms. O as Gladys