Jennifer Love Hewitt as Amanda Beckett

Ethan Embry as Preston Meyers

Charlie Korsmo as William Lichter

Lauren Ambrose as Denise Fleming

Peter Facinelli as Mike Dexter

Seth Green as Kenny Fisher

Michelle Brookhurst as Molly Stinson

Alexander Martin as Olaf

Erik Palladino as Cousin Ron

Channon Roe as Jake

Sean Patrick Thomas as Ben

Freddy Rodríguez as T.J.

Joel Michaely as Geoff Piccirilli

Jay Paulson as Murphy Pelan

Branden Williams as DJ Sammy

Robert Jayne as Richie Koolboy

Johnny Zander as Jimmy

Donald Faison as Dan

Alec Ledd as Brian

Jaime Pressly as Beth

Tamala Jones as Cindi

Jennifer Lyons as Rachel

Chris Owen as Klepto Kid

Vicellous Shannon as Carl

Victor Togunde as Woody

Marisol Nichols as Groupie

Liz Stauber as Lynda

Nicole Bilderback as Ready to Have Sex Girl

Jason Segel as Matt

Paige Moss as Ashley

Clea DuVall as Jana

Leslie Grossman as Ready to Have Sex Girl's Friend

Brian Klugman as Stoner Guy

Meadow Sisto as Flower

Eric Balfour as Steve

Selma Blair as Girl Mike Hits On #1

Sara Rue as Earth Girl

Amber Benson as Stephanie (uncredited)

Jennifer Elise Cox as Mary (uncredited)

Jenna Elfman as The Angel (uncredited)

Melissa Joan Hart as Vicki (uncredited)

Breckin Meyer as Walter (uncredited)

Jerry O'Connell as Trip McNeely (uncredited)

Johnny Whitworth as Gum Boy (Voice) (Uncredited)

Jamie Donnelly as Teacher

Shannon Frank as Party Guest

Brian Hall as Real Homeboy

Tracy R. West as Sydney (uncredited)