The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'FRED BAKER: Late 30's. Gullible. Is his own worst enemy. Would believe that he is the victim of "bad luck" not realising that he makes his own, most of the time. A man who needs the security of a family and a regular job.
'JEAN BAKER: Thirties. Quite attractive. Has lost any respect for her husband some time ago. She looks up to Jack O'Brien as a real man. Drives a car.
'JACK O'BRIEN: Late 30's. Genuinely in love with Jean Baker, and fond of her children. This affair is no casual thing - and he hopes to marry her. Drives a car.
'ALEC BELL: Mid-thirties. Noveau Riche. Smooth confident man who might occasionally show his humble origins. Too well-dressed, sleeve cuffs showing perhaps overdoes it with a handkerchief in top pocket. He smiles easily. Would be successful in any business that required synthetic charm, and bundles of enthusiasm. To him success means more personal possessions. He loves his car, which is an expensive imported one (plot point) tends to be pleasant only to people he needs.
'JOE EVANS: About the same age as Fred Baker. They would have known each other since school days. Joe is the salt of the earth, always willing to give a mate a hand. Confirmed bachelor, with a cynical view of women. If he ever needed a woman - he'd pay for her.
'GEORGE EVANS: Late thirties. A naturally cautious man who is finally taken in by Bell's salesmanship. An ordinary everyday person who would never make a salesman, though the idea of having his own business appeals to him.
'SHIRLEY EVANS: Mid-thirties. Simple soul who is readily taken in by Bell's charm. The thoughts of the riches to come, blind her to the realities of Bell's scheme.
'(ANN BAKER: 7 years.
'(MARIE BAKER: 9-10 years. (Only a few lines. Fred and Jean's two children).
'POLICE CONSTABLE (UNIFORMED): Few lines.
'TWO EXTRA POLICE CONSTABLES (UNIFORMED):
'TWO YOUTHS: Teenagers (one scene).
'MOTORIST: One scene. No lines.
'FOUR EXTRAS: Bell's meeting.
'2 AMBULANCE MEN: Actuals. One scene.'