출연진
Leon Theremin
Self – Inventor of the Theremin
Clara Rockmore
Self – Theremin Virtuoso
Robert Moog
Self – Inventor of the Moog Synthesizer
Nicolas Slonimsky
Self – Composer and Historian
Paul Shure
Self – Musician
Henry Solomonoff
Self – Theremin Studio Member
Suki Bader
Self – Theremin Dancer
Beryl Campbell
Self – Theremin Dancer
Lydia Kavina
Self – Theremin's Niece
브라이언 윌슨
Self – Founder of The Beach Boys
Todd Rundgren
Self – Musician and Producer
블라디미르 레닌
Self (archive footage)
잉그리드 버그만
Dr. Constance Petersen (archive footage) (uncredited)
Bobby Burgess
Actor in Mickey Mouse Show Clip (archive footage) (uncredited)
Samuel Hoffman
Self – Mickey Mouse Show Clip (archive footage) (uncredited)
제리 루이스
Sidney L. Pythias (archive footage) (uncredited)
Ray Milland
Don Birnam (archive footage) (uncredited)
Patricia Neal
Helen Benson (archive footage) (uncredited)
그레고리 펙
John Ballantyne (archive footage) (uncredited)
Michael Rennie
Klaatu (archive footage) (uncredited)
Barbara Rush
Helen Fields (archive footage) (uncredited)