Sean McCann
Insp. Alec Woodward (1975)(eps 1-8)
Stephen Markle
Sgt. Johnny Dias (1975)(eps. 1-8)
Donnelly Rhodes
Nick Raitt, old cop (1976-78)
Jonathan Welsh
Glenn Olsen, young cop (1976-1978)
John Swindells
Inspector Ted Bowman (1976-78)
Michael Ayoub
Harvey Wasko (1976-78)