Tom Selleck
Thomas Magnum (21 eps)
John Hillerman
Jonathan Higgins (21 eps)
Roger E. Mosley
Terry "TC" Calvin (21 eps)
Larry Manetti
Rick Wright (21 eps)
Margaret Lacey
Mrs. Ridley (2 eps)
Pamela Salem
Alyce (2 eps)
Peter Davison
Ian MacKerras (2 eps)
Arthur English
Newspaper Seller (2 eps)
Julian Glover
Duncan Scott / Police Inspector Stokesay (2 eps)
Joseph Long
Commander Ocho (2 eps)
Geoffrey Beevers
Mortuary Attendant (2 eps)
Denny Miller
Leon Platt (1 eps)
Rex Ryon
Dan Davis (1 eps)
Benjamin Feitelson
Moroccan Ticket Agent (1 eps)
Ruddy L. Davis
Moroccan Butler (1 eps)
Lesa Lockford
Airline Stewardess (1 eps)
Kendall McLean
Mother on Airplane (1 eps)
Nayef Rashed
Waiter #1 (1 eps)
Alix Refaie
Waiter #2 (1 eps)
John Newbury
Minister (1 eps)
Stanley Davies
Hotel Clerk (1 eps)
Hugh Beverton
Hotel Clerk (1 eps)
Peter Sands
Security Guard (1 eps)
Jacob Dylan Thomas
Boy on Airplane (1 eps)
Craig Crosbie
Bagpipe Player (1 eps)
Christopher Duffy
Higgins at 18 (1 eps)
Darren Bakal
Higgins at 6 (1 eps)
Daniel Chapman
Boy in Sailor Suit (1 eps)
Marc Boyle
Scorpio 6 Agent (1 eps)
Red Crandall
Robin Masters (voice) (1 eps)
Marta Kober
Mary Elizabeth (1 eps)