Series Cast 18

1. 

   Dean Jones

   Ensign O'Toole (32 Episodes)

2. 

   Jack Mullaney

   Lieutenant Rex St. John (32 Episodes)

3. 

   Harvey Lembeck

   Seaman Gabby Di Julio (32 Episodes)

4. 

   Jay C. Flippen

   Chief Petty Officer Homer Nelson (32 Episodes)

5. 

   Jack Albertson

   Lieutenant Commander Virgil Stoner (32 Episodes)

6. Robert Sorrells

   White (13 Episodes)

7. 

   Ken Berry

   Calucci (1 Episode), Lt. Melton (5 Episodes)

8. Les Brown Jr.

   Lt. Cobby (2 Episodes)

9. 

   Harry Morgan

   Charlie (1 Episode)

10. 

    Skip Ward

    Lt. Ferguson (1 Episode)

11. 

    Stuart Margolin

    Lt. Miller (1 Episode)

12. 

    Stafford Repp

    Commodore (1 Episode)

13. 

    Herbie Faye

    Smitty (1 Episode)

14. 

    Joe Higgins

    Louie (1 Episode)

15. Larry Perron

    Hugo (1 Episode)

16. John Khan

    Stewart (1 Episode)

17. 

    Jamie Farr

    Penski (1 Episode)

18. 

    Steve Franken

    Ensign Clifford Bender (1 Episode)

Series Crew 6