"The Show Stopper" is an episode of Wander Over Yonder.
Wander joins Lord Hater onstage in a concert in an attempt to impress Dominator, while Sylvia and Peepers try to bring the never ending show to a stop.
- Sylvia wears the same disguise that she wore in "The Party Animal".
- Third time an episode's title appears more than once, the others being "The Liar" and "The Matchmaker".
- Lord Hater and the Harbingers of Doom was mentioned early on in "The Greatest".
- Jack McBrayer as Wander
- April Winchell as Sylvia
- Keith Ferguson as Lord Hater
- Tom Kenny as Commander Peepers
- Noel Wells as Lord Dominator