Tommy Kirk as Chuck Phillips

Deborah Walley as Lili Morton

Aron Kincaid as Bobby

Quinn O'Hara as Sinistra

Jesse White as J. Sinister Hulk

Harvey Lembeck as Eric Von Zipper

Nancy Sinatra as Vicki

Claudia Martini as Lulu

Francis X. Bushman as Malcolm

Benny Rubin as Chicken Feather

Bobbie Shaw Chance as Princess Yolanda

George Barrows as Monstro

Basil Rathbone as Reginald Ripper

Patsy Kelly as Myrtle Forbush

Boris Karloff as The Corpse

Susan Hart as The Ghost

Piccola Pupa as Piccola

Luree Holmes as Luree

Ed Garner as Ed

Frank Alesia as Frank

Mary Hughes as Mary

Salli Sachse as Salli

Patti Chandler as Patti

Sue Hamilton as Sue

Alberta Nelson as Puss

Andy Romano as J.D.

Myrna Ross as Rat Pack

Jerry Brutsche as Rat Pack

Bob Harvey as Rat Pack

John Macchia as Rat Pack

Allen Fife as Rat Pack