Cast
Leon ThereminSelf – Inventor of the Theremin- Clara RockmoreSelf – Theremin Virtuoso
- Robert MoogSelf – Inventor of the Moog Synthesizer
- Nicolas SlonimskySelf – Composer and Historian
- Paul ShureSelf – Musician
- Henry SolomonoffSelf – Theremin Studio Member
- Suki BaderSelf – Theremin Dancer
- Beryl CampbellSelf – Theremin Dancer
- Lydia KavinaSelf – Theremin's Niece
Brian WilsonSelf – Founder of The Beach Boys
Todd RundgrenSelf – Musician and Producer
Vladimir LeninSelf (archive footage)
Ingrid BergmanDr. Constance Petersen (archive footage) (uncredited)
Bobby BurgessActor in Mickey Mouse Show Clip (archive footage) (uncredited)- Samuel HoffmanSelf – Mickey Mouse Show Clip (archive footage) (uncredited)
