Zwiastun
Obsada
Gerrit Graham
Stanley Putterman
Ian Patrick Williams
Nutky
Randi Brooks
Cherry
Jack Mylong-Münz
Archive Footage (Robot Monster)
Selena Royle
Archive Footage (Robot Monster)
Frank Welker
The Monster
Diane Franklin
Suzy Putterman
Chad Allen
Sherman Putterman
Jon Gries
O.D.
Alejandro Rey
Spiro
Mary Woronov
Raquel Putterman
Bert Remsen
Grampa Putterman
Sonny Carl Davis
Norton
Gregory Moffett
Archive Footage (Robot Monster)