Riven

Sid Caesar

as Ben Powell

Vera Miles

as Kate Powell

Barry Gordon

as Steve Powell

John McGiver

as Uncle George

Cass Daley

as Felicity Twitchell

Ricky Cordell

as Miles Thorpe

Mary Wickes

as Gloria Tritt

Jesse White

as Fess Dorple

Robert Donner

as Ebenezer Twitchell

Nestor Paiva

as Felicity's Father

Doodles Weaver

as Booper Mellish

Jay C. Flippen

as Mother

Jill Townsend

as Jenny / Priscilla Weems / Carol Weems

John Astin

as Dr. Frieden

Harvey Lembeck

as Capt. Pederson (uncredited)

William Castle

as Mr. Hymer (uncredited)

Byron Foulger

as Drug Store Owner (uncredited)

Ben Starr

Screenplay

William Castle

Producer

William Castle

Director

Vic Mizzy

Original Music Composer

Nathaniel Benchley

Novel

Dona Holloway

Associate Producer

Harold E. Stine

Cinematography

Edwin H. Bryant

Editor

Walter H. Tyler

Art Direction

Hal Pereira

Art Direction