Johnny Knoxville as Irving Zisman

Jackson Nicoll as Billy Zisman-Muskie

Georgina Cates as Kimmie Zisman

Catherine Keener as Ellie Zisman

Spike Jonze as Gloria

Kamber Hejlik as Doctor

Grasie Mercedes as Hostess

Jack Polick as Funeral Worker

Zia Harris as Chuck Muskie

Jill Killington as Pageant Reporter

Madison Davis as Juggalo Girl

George Faughnan as Juggalo Guy

Marilynn Allain as Receptionist