Sezono nuolatiniai aktoriai 2

1. 

   Jon Pertwee

   The Doctor

2. 

   Katy Manning

   Jo Grant

Kviestinė kino žvaigždė 8

1. 

   Roger Delgado

   The Master

2. 

   Edwin Richfield

   Captain Hart

3. June Murphy

   3rd Officer Jane Blythe

4. Alec Wallis

   Ldg. Telegraphist Bowman

5. 

   Pat Gorman

   Sea Devil

6. 

   Martin Boddey

   Walker

7. John Caesar

   C.P.O. Myers

8. Peter Forbes-Robertson

   Chief Sea Devil

Filmavimo grupė 6