Stagioni Regolari 7

1. 

   William Shatner

   James T. Kirk

2. 

   Leonard Nimoy

   Spock

3. 

   DeForest Kelley

   Dr. McCoy

4. 

   James Doohan

   Scott

5. 

   Walter Koenig

   Pavel Chekov

6. 

   George Takei

   Sulu

7. 

   Nichelle Nichols

   Uhura

Guest Stars 22

1. 

   Teri Garr

   Roberta Lincoln

2. 

   Roger Holloway

   Lt. Lemli (uncredited)

3. 

   Robert Lansing

   Gary Seven

4. 

   Don Keefer

   Cromwell

5. 

   Barbara Babcock

   Beta Five Computer (voice) / Isis (voice)

6. 

   Frank da Vinci

   Lt. Clifford Brent

7. April Tatro

   Isis - human form

8. 

   Eddie Paskey

   Lieutenant Leslie (uncredited)

9. Edwin Rochelle

   Man With Newspaper (uncredited)

10. Esther Ying Lee

    Pedestrian (uncredited)

11. Ken Kane

    Workman (uncredited)

12. 

    Bob Johnson

    Ground Control (voice) (uncredited)

13. Rudy Doucette

    Staff Member (uncredited)

14. 

    Frank da Vinci

    Lt. Clifford Brent (uncredited)

15. Robert D'Arcy

    Pedestrian (uncredited)

16. 

    Bill Blackburn

    Lieutenant Hadley / Rocket Base Technician (uncredited)

17. 

    Barbara Babcock

    Beta 5 Computer / Isis (voice) (uncredited)

18. 

    Paul Baxley

    Security Chief

19. 

    Ted Gehring

    Second Policeman

20. Bruce Mars

    First Policeman

21. 

    Morgan Jones

    Col. Nesvig

22. 

    Lincoln Demyan

    Sergeant

Troupe 18