The Grim Adventures of Billy & Mandy

Smarten Up!

TV-Y7
S2 • E16    Jul 17, 2003
Grim tries to help Billy pass a test.

Where to Watch Smarten Up!

Cast of Smarten Up!

  • Greg EaglesGrim (voice)
  • Richard Steven HorvitzBilly (voice)
  • Grey DeLisleMandy (voice)
  • Vanessa MarshallIrwin (voice)
  • Dee Bradley BakerWorm

 

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