The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'RAINCOAT: Late fifties. An ex-crim - once a big time fence - but now a sickly, broken little man, with a variety of dirty habits and perversions.
'RON MURPHY: Early twenties - a tough, physical crim with a record for violence.
'GARY HASTINGS: His mate - about the same age. Generally more easy going - but just as violent when aroused. Drives a truck and a stacker. (Stand-in possible but preferable if actor can drive).
'SELINA YOUNG: 20. Gary's girlfriend. Sexy in a crude and obvious kind of way. From a pretty tough background.
'NIGHT WATCHMAN: A retired policeman.
'DESPATCH FOREMAN'.