Captain Underpants Mega Blissmas

Christmas gets weird — really weird — after George and Harold go back in time to change up a few of their beloved holiday's traditions.

• 
  Nat Faxon

  Captain Underpants / Mr. Krupp (voice)
• 
  Jay Gragnani

  Harold (voice)
• 
  Ramone Hamilton

  George (voice)
• 
  Sean Astin

  Narrator (voice)
• 
  Dayci Brookshire

  Jessica / Dressy (voice)
• 
  Jim Cummings

  Santa (voice)
• 
  Jorge Diaz

  Melvin / Stanley Peet (voice)
• 
  Peter Hastings

  Comic Narrator (voice)
• 
  Evan Kishiyama

  Steve 'Gooch' Yamaguchi (voice)
• 
  David Koechner

  Mr. Meaner (voice)