Jack Thompson
— Scobie Malone
Judy Morris
— Helga Brand
Shane Porteous
— Constable Russ Clements
Noel Ferrier
— Mr. Sin
Jacqueline Kott
— Norma Helidon
James Condon
— Walter Helidon
Cul Cullen
— Captain Bixby
Ken Goodlet
— Premier
Walter Sullivan
— Inspector Fulmer
Max Meldrum
— Scientific Officer
Joe James
— Attorney General
Victoria Anoux
— Becky
Zoe Salmon
— Angie
Bunkie King
— Jackie
Peter McLean
— Photographer
Len London
— Police Commissioner
Barbara Mason
— Socialite
Faye Donaldson
— Socialite
Maggie Blinco
— Landlady
Di Bergan
— Maid
Bryan Brown
— Policeman (as Brian Bronn)
Judy McBurney
— Girl at Pedestrian Crossing
Lee King
— Woman Swimming Nude in Pool
Peta Peter
— Telephone Girl
Joe Martin
— Jack Savanna