A calculating and ruthless antagonist who exploits supernatural artifacts to fuse with the Delightful Children, temporarily seizing control of the KND before being confronted by Numbuh 1 and Grim.
A clash between Grim's supernatural duties and Mandy's ruthless takeover attempts.
Mandy exploits the chaos caused by Billy's accident to seize organizational control.
Explore the full interactive character relationship map of The Grim Adventures of the Kids Next Door