Francis Matthews

as Captain Scarlet (voice)

Ed Bishop

as Captain Blue (voice)

Donald Gray

as Colonel White / Captain Black / The Mysterons (voice)

Cy Grant

as Lieutenant Green (voice)

Elizabeth Morgan

as Destiny Angel / Rhapsody Angel / Harmony Angel (voice)

Gary Files

as Captain Magenta (voice)

David Healy

as (voice) (credit only)

Charles Tingwell

as Lieutenant Dean / Captain Brown / Agent 042 / Various Characters (voice)

Jeremy Wilkin

as Captain Ochre / Jackson / Human Captain Black / Various Characters (voice)

Neil McCallum

as Delta-Tango 19 Pilot / Airport Controller (voice)

Martin King

as Delta-Tango 19 Co-Pilot (voice)

Janna Hill

as Symphony Angel / Intercontinental Airlines Tannoy (voice)

Sylvia Anderson

as Melody Angel (voice)

Paul Maxwell

as Captain Grey / World President / Fire Chief (voice)

Lian-Shin Yang

as (voice) (credit only)