The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'DOUG MASON: Good looking, clean cut type in late teens or early 20's. Looks as if butter wouldn't melt in his mouth. A charmer. A drug pusher; anything for a dirty buck, as long as it's money. Works at projecting an image of "wholesomeness" and uses his charm to con others into using drugs until he has them hooked. Drives. The victim (in teaser).
'CON CAMPBELL: Roughneck bikie pack leader. Neither too law abiding nor unduly lawless. A tough guy, especially in bikie circles, but has never been in real trouble with the law. When he learns that Doug Mason was the pusher who supplied his sister he sets out to kill Doug and destroy his carefully built-up image of "wholesomeness". Mid twenties - rides motorcycle.
'WHIP O'TOOLE: One of Campbell's bikie pack. Not too brainy, likes a "rumble" and favours a length of motorcycle chain as a weapon, hence his nickname. He's loyal to Campbell and will follow his orders to the letter, though isn't good at thinking for himself. 20's, rides motorcycle.
'KURT LANG: Third member of Campbell's Shark Pack. Hasn't much stomach for murder and has had conviction by the police for assault. He draws the line at killing and has a terror of going back to gaol; he can't stand being confined. Afraid of Campbell; rides motorcycle.
'JOHN MASON: Doug's respectable father. Ordinary middle-class type, feeling the pressures of years of living with an invalid wife. Looks on Doug as the epitome of a loving son and won't hear a word against him. In his grief, he even sets out to take the law into his own hands in an effort to get the killers. Forties. Drives.
'RUTH MASON: Doug's invalid mother. She's been "sick" for many years, tho' we're not specific about the illness. Medical bills are part and parcel of the Mason's [sic] existence. She, too, adored her son, thinking the sun shone out of him. She utterly refuses to believe he was a drug pusher.
'NICK PERRY: Service Station proprietor and Doug's boss. He saw only Doug's good side, thought him a great bloke. Perry himself is a "good bloke" courteous [sic], helpful to the police, very likeable. Forties.
'GAIL PERRY Doug Mason's "steady" girlfriend and daughter of his boss, Nick Perry. A "nice kid" in every sense of the word. About 20. "With it" but not promiscuous or into drugs, tho' believes kids should be free to do their own thing. Unaware that Doug is a drug pusher.
'CORKY BARNES: Old hobo derelict in his late fifties, early sixties. Likes his plonk and is an opportunist: as he demonstrates by picking up the parcel from the seat of Doug's sports car before the police arrive. Likeable old cuss, clinging to a few shreds of dignity.
'CONSTABLE #1: Few lines.
'CONSTABLE #2: N/S.
'BIKIE ACTUALS: N/S.
'BIKIE: Cornered by Mason, set about by him with an iron bar, threatened to smash his machine unless he tells him what he wants to know. Rides motorcycle.'
