Siobhan Redmond
Det. Sgt. Maureen Connell (35 eps)
Tom Georgeson
Det. Insp. Harry Naylor (35 eps)
Neil Pearson
Det. Supt. Tony Clark (35 eps)
Tony Doyle
Chief Supt. John Deakin (35 eps)
Dorian Healy
P.C. Geoff Richards (35 eps)
Nigel Lindsay
Insp. Alan Grant (35 eps)
Sylvestra Le Touzel
Sarah Teale (35 eps)
Robin McCallum
Det. Supt. David Graves (35 eps)
John Shrapnel
Deputy Assistant Commissioner Dunning (14 eps)
Lesley Vickerage
WPC Jenny Dean (13 eps)
David Lyons
Commander Brian Huxtable (13 eps)
Hugh Ross
Commander Graham Sullivan (12 eps)
Bob Mason
Richard Newman (5 eps)
Hermione Norris
Gail Myles (1 eps)
Stephen Moore
Det. Supt. Billy Urquhart (1 eps)
Steven Mackintosh
P.C. Fulford (1 eps)
Raymond Trickitt
Van Driver (1 eps)
Glen Berry
Max (1 eps)
Francesca Annis
Angela Berridge (1 eps)
Matyelok Gibbs
Mrs. Ames (1 eps)
Lawrence Mullin
Custody Sergeant (1 eps)
Larry Lamb
Dennis Ralston (1 eps)