Don Preston

Self (AKA Dom DeWilde) / Biff Debris / Uncle Meat

Frank Zappa

Self / The Imaginary Director

Phyllis Smith Altenhaus

Self / Sheba Flieschman (as Phyllis Altenhaus)

Dick Barber

Self

Massimo Bassoli

Adult Minnesota Tishman

Rodney Bingenheimer

Self

Jimmy Carl Black

Self

Aynsley Dunbar

Self / Biff Junior