Mary Millington

Sgt. Lucy Sheridan

Glynn Edwards

Chief Superintendent Holbourne

Gavin Campbell

Inspector Harry Morgan

Windsor Davies

Assistant Police Commissioner

Derren Nesbitt

Jeremy

Alan Lake

Harry Dougan

Dudley Sutton

Hern

Sandra Dorne

Dougan's Secretary

Penny Spencer

W.P.C. Andrews

Ballard Berkeley

Trainer

Kenny Lynch

Police Doctor

Susie Silvey

W.P.C. Taylor

Cosey Fanni Tutti

Extra (uncredited)

Pat Gorman

Expert 3

Pat Astley

Doreen

John M. East

Mediaman