First broadcast 21st September 1978.
John Thaw - Regan
Dennis Waterman - Carter
Kate Fahy - WPC Julie Kingdom (as Katherine Fahy)
Albert Welling - PC Mike Seton
Benjamin Whitrow - Det. Chief Supt. Braithwaite
Patrick Malahide - Mason
Peter Kerrigan - Bowyer
Roger Hume - Lockhart
Derek Deadman - Curry
John Rolfe - Det. Chief Supt. Brookford
Dave Atkins - Marriot (as David Atkins)
John Hartley - Chief Inspector
David Foxxe - Cyril
John Alkin - DS Tom Daniels
Oliver Smith - Lorry Driver
Vivienne Johnson - Mavis
Rachel Dix - Marriot's Girlfriend
Tony Allen - Bill the Driver
Mike Reynell - Squad Officer
