Seth Rogen as Mac Radner

Zac Efron as Teddy Sanders

Rose Byrne as Kelly Radner

Chloë Grace Moretz as Shelby

Dave Franco as Pete

Ike Barinholtz as Jimmy

Lisa Kudrow as Dean Carol Gladstone

Selena Gomez as Phi Lamda President

Jerrod Carmichael as Garf

Carla Gallo as Paula

Kiersey Clemons as Beth

Beanie Feldstein as Nora

Hannibal Buress as Officer Watkins

Christopher Mintz-Plasse as Scoonie

Elise Vargas as Stella

Zoey Vargas as Stella

Clara Mamet as Maranda

Awkwafina as Christine

John Early as Darren

Johnny Pemberton as Frat President

Kyle Mooney as R.A.

Ian Gregg as Second Frat Guy

Jacob Wysocki as Live Tinder Guy

Liz Cackowski as Wendy the Realtor

Kelsey Grammer as Shelby's Dad

Sam Richardson as Eric Baiers

Abbi Jacobson as Jessica Baiers

Billy Eichner as Oliver Studebaker

Brian Huskey as Bill Wazakowski

Miles Armstrong as Rapper

Kemuel Crossty as Rapper

Cameron Hill as Rapper

Denryc Hill as Rapper

Brian K. Johnson as Rapper

Windsor Jones as Rapper

Harrison Thacker as Rapper

Ciara Bravo as Sorority Girl