Grim, Billy, and Mandy
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Real Identity: Grim, Billy, and Mandy
Appearances: Warner Bros. 100th Anniversary Part 1 and Warner Bros. 100th Anniversary Part 2 (Grim and Mandy only)
Powers/Skills: Unrevealed
Voiced By: Not Applicable
Grim, Billy, and Mandy attended the 100th anniversary party at the Warner Bros. Studios. The metal detector was set off by them. Grim produced his sickle. The Teen Titans got scared and ran away.