An Insane High School Surprise is an upcoming 2032 American direct-to-video adult computer-animated musical comedy-drama adventure film. It serves as a bridge between the sequel and the third film and the bridge between High Schoolers 2 and its sequel. It is a crossover between Sausage Party, Annoying Orange, South Park, and High Schoolers.


D.J. and his friends from High Schoolers sneak into the Sausage Party world and suddenly find the pottymouthed kids of South Park.


Sausage Party

  • Jason Bateman as Toilet Paper, one of the two main protagonists.
  • Seth Rogen as Frank
  • Kristen Wiig as Brenda
  • Danny McBride as Choco
  • Edward Norton as Sammy Bagel Jr
  • Ryan Reynolds as Russell, an lettuce who is one of Collin's lettuce buds
  • Bill Hader as Green, an lettuce who is one of Collin's lettuce buds
  • Josh Keaton as Leaf, an lettuce who is one of Collin's lettuce buds
  • Michael Cera as Barry
  • Jonah Hill as Splash
  • Lauren Miller as Camille Toh
  • Josh Gad as Gummy
  • Scott Underwood as Gum

High Schoolers

  • Selena Gomez as Haley Flanagan, one of the two main protagonists.
  • Freddie Prinze Jr. as Collin Brady (revived as a lettuce)
  • Anne Hathaway as Lagan Fuller
  • Seth Rogen as David Jones 'D.J' Myrick
  • Kristen Wiig as Ashleigh Jefferys; Haley Grace Malone
  • Kate Winslet as Morgan Bendall; Heather Adams
  • Nicole Oliver as Elisha Preston; Jasmine Todd (Ball previously voiced Jasmine.)
  • Grey DeLisle as Audrianna Flanagan
  • Zoe Saldana as Clara Corona (revived by Barry)

Annoying Orange

  • Dane Boedigheimer as Orange, Pear, Midget Apple and Marshmallow
  • Justine Ezarik as Passion Fruit
  • Bobby Jennings as Grapefruit
  • Harland Williams as Apple
  • Matty Damon as Knife

South Park

  • Trey Parker as Stan Marsh / Eric Cartman / Mr. Garrison / Mr. Mackey / Randy Marsh
  • Matt Stone as Kyle Broflovski / Kenny McCormick / Gerald Broflovski
  • Mona Marshall as Liane Cartman / Sheila Broflovski / Sharon Marsh / Carol McCormick
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