Rudy Pankow Mark
Johnny Knoxville Love Letter (voice)
Zach Cherry Todd
Topher Grace Mr. Whiley
Ana Gasteyer Principal Nadler
Sunita Mani Ms. Wing
John Reynolds Sunny Football, Writer
Jill Talley Ron’s Mom
John Early Tim
Steve Little Marvin
Jackie Cruz Victoria Mayo
Jon Watts Producer
Sofia Black-D'Elia Katie Cartwright
Roberta Colindrez Claire Dubois
Maria Thayer Ms. Jankey
Carmen Christopher Tedi Mayo
Ayden Mayeri Trish
Patti Harrison Sandra
Joe Pera Group Member
Jo Firestone Amelia Nadler
Al Thompson Mover 1
Richard Perez Group Leader
Gary Richardson Curtis Eldridge
Nicholas Hatton Producer
Ana Fabrega Friz
Nate Varrone Ron Felker
Jeremy Garelick Producer
Mohammed J. Ali Guy Who Looks Like Curtis
Billy Bryk Kai
Scotty Nelson Bill Brown
Nick Mestad Derek
Nathan Min Peter
Jason Woliner Producer
Matt Barats Matt Clinger
Alexandra Sloane Art Department Assistant
Danny Groh Gym Teacher
Caitlin Machak "B" Camera Operator
Marty Schousboe Director
Molle DeBartolo Executive Producer
Ryan Monolopolus Mover 2
Matt Clegg Director of Photography
Joe Cunningham Jerry
Billy Rosenberg Producer
Axelle Azoulay Co-Producer
Will Phelps Producer
Tommy Armstrong Teen 2
Micah Sterenberg Sad Student
Mike Malarkey Original Music Composer
Max Clarke Guitar Player
Alyssa Fullana (uncredited)
Ben Nadler Alien/Guitar Guy
Lydia Hines Teen 1
Jason Zaro Producer
Marianne Natoli (uncredited)
Drennen Quinn Radio DJ
Will Landon (uncredited)
Matt Sacca Associate Producer