Todd Phillips Director, Screenwriter, Producer Luke Wilson Mitch Actor Will Ferrell Frank Actor Vince Vaughn Beanie Actor Jeremy Piven Gordon Pritchard Actor Ellen Pompeo Nicole Actor Juliette Lewis Heidi Actor Leah Remini Lara Actor Perrey Reeves Marissa Actor Craig Kilborn Mark Actor Elisha Cuthbert Darcie Actor Patrick Cranshaw Joseph Palasky Actor Jerod Mixon Weensie Actor Seann William Scott Peppers Actor Harve Presnell Mr. Springbrook Actor James Carville Self Snoop Dogg Self Warren G. Self Simon Helberg Jerry Actor Scot Armstrong Screenwriter Daniel Goldberg Producer Joe Medjuck Producer Tom Pollock Executive Producer Ivan Reitman Executive Producer Paul Deason Co-Producer, Unit Production Manager Mark Irwin Cinematographer Michael Jablow Film Editing Theodore Shapiro Original Music Clark Hunter Production Design Max Biscoe Art Director Traci Kirshbaum Set Decoration Nancy Fisher Costume Design Joseph Middleton Casting