Season Regulars 4

1. 

   Jodie Whittaker

   The Doctor

2. 

   Mandip Gill

   Yasmin 'Yaz' Khan

3. 

   Bradley Walsh

   Graham O'Brien

4. 

   Tosin Cole

   Ryan Sinclair

Guest Stars 19

1. 

   Darron Meyer

   Agent Seesay

2. Sacharissa Claxton

   Passenger

3. 

   Asif Khan

   Sergeant Ramesh Sunder

4. Melissa De Vries

   Sniper

5. 

   Lenny Henry

   Daniel Barton

6. 

   Struan Rodger

   Voice of Kasaavin

7. William Ely

   Older Passenger

8. Andrew Bone

   Mr. Collins

9. 

   James Rockey

   Franklin (uncredited)

10. Christopher Mc Arthur

    Ethan

11. 

    Stephen Fry

    C

12. 

    Ronan Summers

    Rendition Man

13. 

    Dominique Maher

    Agent Browning

14. 

    Buom Tihngang

    Tibo

15. 

    Shobna Gulati

    Najia Khan

16. 

    Sacha Dhawan

    The Master

17. Bhavnisha Parmar

    Sonya Khan

18. 

    Ravin J. Ganatra

    Hakim Khan

19. 

    Brian Law

    Operative (US)

Crew 3