Oliver Postgate

饰：Himself - Narrator

Mark Ayres

饰：Himself - Associate Radiophonic Composer

Brian Hodgson

饰：Himself - Radiophonic Composer 1962-72

Desmond Briscoe

饰：Himself - Founder Member and Head of Radiophonic Workshop, 1958-

Maddalena Fagandini

饰：Herself - Radiophonic Composer 1959-66

Adrian Utley

饰：Himself - Composer

Delia Derbyshire

饰：Herself - Radiophonic Composer 1962-73

Peter Kember

饰：Himself - Composer

Milton Babbitt

饰：Himself - Electronic Composer

休·威尔顿

Huw Wheldon

饰：Himself - Interviewer

彼得·塞拉菲诺威茨

Gelg

饰：自己

Robert Popper

饰：自己

Paddy Kingsland

饰：自己

温蒂·卡洛斯

Wendy Carlos

饰：Self,(archive footage) (as Walter Carlos)