Top Billed Cast

1. 

   Sylvia Anderson

   Lady Penelope Creighton-Ward (voice)

2. 

   Ray Barrett

   John Tracy / The Hood (voice)

3. 

   Alexander Davion

   Space Captain Greg Martin (voice)

4. 

   Peter Dyneley

   Jeff Tracy (voice)

5. 

   Christine Finn

   Tin-Tin Kyrano (voice)

6. 

   David Graham

   Gordon Tracy / Brains / Aloysius Parker (voice)

7. 

   Paul Maxwell

   Captain Paul Travers (voice)

8. 

   Neil McCallum

   Dr. Ray Pierce (voice)

9. 

   Bob Monkhouse

   Space Navigator Brad Newman / Swinging Star Compere (voice)

10. 

    Shane Rimmer

    Scott Tracy (voice)

11. 

    Charles Tingwell

    Dr. Tony Grant / Angry Young Man / Public Relations Officer (voice)

12. 

    Jeremy Wilkin

    Virgil Tracy / Space Exploration Center President (voice)

13. 

    Matt Zimmerman

    Alan Tracy / Messenger (voice)

14. 

    F. Vivian Dunn

    Himself (voice)

15. 

    Cliff Richard

    Cliff Richard Jr. (voice)