Stała obsada sezonu 4

1. 

   Tom Selleck

   Thomas Magnum

2. 

   John Hillerman

   Jonathan Higgins

3. 

   Roger E. Mosley

   Terry 'TC' Calvin

4. 

   Larry Manetti

   Rick Wright

Goście specjalni 14

1. 

   Miguel Ferrer

   Bobby Wickes

2. 

   Scatman Crothers

   Tickler

3. Remi Abellira

   Moki

4. Reri Tava Jobe

   Hostess

5. 

   June Lockhart

   Diane Westmore Pauley

6. 

   Anne Lockhart

   Diane Westmore

7. 

   José Ferrer

   Robert Caine

8. 

   Elizabeth Lindsey

   Kiki

9. Merlin 'Sonny' Ching

   Maku

10. Patricia Herman

    Jessie

11. David Palmer

    Mueller

12. Larry Shriver

    Sculley

13. Judith Sykes

    Maid

14. Grady Bumpus

    Serviceman

Ekipa 5