The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'ALEX WATSFORD: Late 30's. A small man, short-sighted, fairly ineffectual but useless without his glasses. His life has become a safe, regular pattern. He longs to break out, to find adventure. Required for night filming. Must be able to drive.
'CHRIS GREEN: Early 20's. Long-haired, nicely shaped. Not a hippie but easily acceptable as one. Aware of her own sexuality and uses it as a way of life. Required for night filming.
'RICK BRISTOW: Mid-twenties. Tall, well-built, physical. Works any kind of racket for a fast buck. No compassion. Main concern is always himself and what's in it for him. Required for night filming. Must be able to drive and ride a motor-bike.
'SERGEANT DAN FARRADY: Experienced Sergeant in the Vice Squad.
'HARVEY: 40's. Well-dressed victim of a racket using a girl as bait, somewhat nervous about bringing the police in and the possible consequences.
'NEIGHBOUR: Male, married. Any age.
'MRS. WALKER: Early thirties. Pleasant. Reports her husband missing.
'HOWARD WALKER: 36. Corpse.
'MANAGER: Runs a none-too-reputable car yard. Supplies cars for prostitutes on the side. Should be able to turn on death-adder charm and also be demolished effectively.
'JENNY ROBINSON: Prostitute. Young, brazenly attractive.
'PHOTOGRAPHER:
'DESK SERGEANT:
'SENIOR CONSTABLE BILL HARRIS:
'MOBILE CONSTABLE:
'GARAGE MAN:
'WAITRESS - MOTEL (BENALLA):
'WAITRESS - SERVICE STATION (BENALLA): Actual.
'GENERAL MANAGER: Of Boot Factory.
'FIRST LAIR:
'SECOND LAIR:
'SERGEANT (BENALLA):
'BYSTANDERS: Actual.'