Jill Gascoine
Det. Insp. Maggie Forbes (56 eps)
Derek Thompson
Detective Sergeant Jimmy Fenton (56 eps)
William Marlowe
Det. Chief Insp. Russell (56 eps)
Nigel Rathbone
Steve Forbes (56 eps)
Brian Gwaspari
Det. Insp. Bob Croft (43 eps)
Paul Moriarty
Detective Sergeant Jake Barrett (43 eps)
Kevin O'Shea
Det. Sgt. Peter Phillips (26 eps)
Michael Graham Cox
Det. Insp. Jack Slater (8 eps)
Joss Ackland
Ivor Stocker (1 eps)
Barbara Young
Paula Ferris (1 eps)
Louise Jameson
Emma Saunders (1 eps)
David Hanson
Police Doctor (1 eps)
Doreen Mantle
Beryl King (1 eps)
David Ashford
Kevin Lever (1 eps)
Frank Thornton
Leo (1 eps)
David Kelly
Dooley (1 eps)
Liz Smith
Edna Slater (1 eps)
Dudley Sutton
Ted Oates (1 eps)
Margery Mason
Mrs Felix (1 eps)
Gerard Ryder
Clegg (1 eps)
Diana Fairfax
Lady Morell (1 eps)
Ellis Dale
Mr Dean (1 eps)