Dumb and Dumber

Brain, Brain, Go Away

TV-Y
S1 • E16    Jan 5, 1996
7.3
Harry accidentally drinks a serum that turns him into a genius and Lloyd fears their friendship is in jeopardy.

Where to Watch Brain, Brain, Go Away

Cast of Brain, Brain, Go Away

  • Matt FrewerLloyd Christmas (voice)
  • Bill FagerbakkeHarry Dunne (voice)
  • Bronson PinchotDymbster (voice)
  • Kath SoucieWaitress (voice)

 

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