On screen
Cast
88 credited performers
Damien Fahey
Character not listed
Carson Daly
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Gideon Yago
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Nick Zano
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Kurt Loder
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Quddus
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Susie Castillo
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SuChin Pak
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Ashlee Simpson
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Daniel Radcliffe
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James Lafferty
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Christina Aguilera
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Amber Tamblyn
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Jaime Pressly
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Jada Pinkett Smith
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Jamie Kennedy
Self
Ben Affleck
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Melissa Schuman
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Paula Abdul
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Scott Foley
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Tiffani Thiessen
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Britney Spears
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Will Ferrell
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Nick Cannon
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Eugene Levy
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Hilarie Burton Morgan
Self
Shakira
Character not listed
Carmen Electra
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Lauren Conrad
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Big Boi
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Game
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Ryan Cabrera
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Erika Christensen
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Eve
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Sean Paul
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Fat Joe
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Common
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Amanda Bynes
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Toni Collette
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Chris Brown
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Matthew McConaughey
Self
Orlando Bloom
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Dakota Fanning
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Lindsay Lohan
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Ryan Dunn
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Lisa Origliasso
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Hilary Duff
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Natasha Bedingfield
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Donnie Wahlberg
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Shannon Bex
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Cheyenne Kimball
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Joseph Simmons
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Sandra Bullock
Self
Kylie Minogue
Self
Samuel L. Jackson
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Elijah Wood
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Alexis Bledel
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Reese Witherspoon
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T.I.
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Marques Houston
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David Banner
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Alicia Keys
Self
Jessica Alba
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Raven-Symoné
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Kirsten Dunst
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Stevie Wonder
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Zach Braff
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Jessica Origliasso
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Rosario Dawson
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Aubrey O'Day
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Will Smith
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Usher
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Kate Havnevik
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Shad Moss
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Shia LaBeouf
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Jamie Foxx
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Aundrea Fimbres
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Tyler Hilton
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Wanita "D. Woods" Woodgette
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Chad Michael Murray
Character not listed
Twista
Character not listed
Denzel Washington
Self
Caleb McLaughlin
Self - Guest
Sadie Sink
Self - Guest
Finn Wolfhard
Self - Guest
Gaten Matarazzo
Self - Guest
Amy Pham
Self - Guest
Tamara Dhia
Self - Guest