TerrorVision

Diane Franklin

Suzy Putterman

Gerrit Graham

Stanley Putterman

Mary Woronov

Raquel Putterman

Chad Allen

Sherman Putterman

Jon Gries

O.D.

Bert Remsen

Grampa Putterman

Alejandro Rey

Spiro

Randi Brooks

Cherry

Jennifer Richards

Medusa

Sonny Carl Davis

Norton

Ian Patrick Williams

Nutky

William Paulson

Pluthar

John Leamer

Chauffeur

Gregory Moffett

Archive Footage (Robot Monster)

Jack Mylong-Münz

Archive Footage (Robot Monster)

Selena Royle

Archive Footage (Robot Monster)

Frank Welker

The Monster