Connie Stevens

as Kelly Williams / Emmaline Kelly

Shelley Winters

as Agatha Murphy

Jack Carter

as Manny Fox

William Castle

as Jack P. Harper

Don Murray

as Sen. Grant O'Neal

James Olson

as Calvin Bernard

Nehemiah Persoff

as Nick Fortis

Madlyn Rhue

as Joy Hudson

Milton Selzer

as Phil Bamberger

Tony Young

as Rick Roman

William Smith

as Butch Wischnewski

Rand Brooks

as Edward Kelly (voice)

Malachi Throne

as Otto Litsky (voice)

Frank Loverde

as Investigator

Bing Russell

as Public Relations Man

Dennis Rucker

as Tom Brown

Joe Turkel

as Director

Jack Collins

as Ted Brown

Rita Guerrero

as Serena

Bill McGovern

Albert Able

as First Reporter

Herb Graham

Burr Smidt

as Second Reporter