Aubrey Plaza as Brandy Klark

Johnny Simmons as Cameron

Bill Hader as Willy

Alia Shawkat as Fiona

Sarah Steele as Wendy

Scott Porter as Rusty Waters

Rachel Bilson as Amber

Christopher Mintz-Plasse as Duffy

Andy Samberg as Van

Donald Glover as Derrick

Adam Pally as Chip

D.C. Pierson as Hillcrest Lifeguard #1

Dominic Dierkes as Hillcrest Lifeguard #2

Connie Britton as Mrs. Klark

Clark Gregg as Judge Klark

Bryce Clyde Jenkins as Benji

Nolan Gould as Max

Skyler Vallo as Hot Girl at Party

D'Arcy Carden as Movie Patron

Chrystal Harris as Female Stripper

Brian Huskey as High School Principal

Lauren Lapkus as Girl Heckler

Jack McBrayer as Hillcrest Pool Manager

Betsy Sodaro as Graduate #2

Kevin M. Brennan as Guitar Player (Van's Band)

Zachary Ross as Drummer (Van's Band)

Scott Davidson as Bass (Van's Band)

Elaine Ballace as Bartender

Liz Cackowski as Aerobics Instructor

Michael Delaney as Cameron's Dad (voice)

Molly Lloyd as Theater Announcer (voice)