Captain Underpants Wiki
FD67BFC3-2779-4739-B540-AD26D9AA1E16 This article is a stub and would benefit greatly if it contained more information. Please help the Captain Underpants Wiki by expanding it.

Tra-la-leg day! Cause this stuff's heavy.
  —Captain Ultrapants  

Captain Ultrapants is the dream version of Captain Underpants. He only appears in "The Monstrous Mayhem of the Massive Melviathan".