The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'MARIA BOMPANI Under 20, Italian accent. Fanatic catholic. Very much in love with a young playboy who has left her for somebody else. Decides to kill him and after that - herself.
'FATHER GILBERT In his forties, sensitive, strong. An ex-dreamer and ex-misfit. Formerly a bombardier in the Korean war, where he came to know Mackay.
'JOHN REYNOLDS A mechanic - early twenties. Shy. In love with Maria - but will never tell her. Loses his voice every time he talks to her and therefore has to constantly clear his throat.
'TONY HEWITT (Driver) 20's - very good looking - Mother's boy. Owns boutique where Maria works. Has to constantly prove himself with girls - but the real love of his life is his car. Turns ugly when he doesn't get what he wants.
'MRS. REYNOLDS Maria's landlady. Middle-forties. Good looking - lively, warm. Strong, bossy personality. Knows life and men. (John's mother.)
'PAWNBROKER
'BARTHOLOMEW 20's. Very gay, effeminate young man. Very interested in Tony's love life.
'MR. GARRONE 40's - 50's. A widower who doesn't grieve for his wife. Bad tempered, no sympathy for his daughter.
'BARMAID Barmaid and prbstitute [sic], in her 40's. Heavy, "dressed in full traditional regalia". Sour and suspicious.
'ANA A girl that must look very much like Maria. Same figure and hair.
'SECOND GIRL Young prostitute - A bit dumb. Few lines only. Has a tattoo on her waist.
'AMBROSE Big, sinister, menacing looking thug. Few lines only.
'LUCY Early 20's. Very beautiful. Very intelligent, very sensitive. Thinks she sees through Tony but doesn't expect him to turn violent.
'FRED Same age as Tony and Bartholomew. Fresh and cheeky. Interested in Maria. Like Bartholomew - audience of Tony.
'MRS. HERNANI Middle thirties - very pregnant, neurotic, talkative. Has constant changes of mood. Italian accent essential.'