The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'BRIAN CLARK 24. Leader of a group of young hoodlums. Probably schizoid. Clean-cut good looks belie an unstable, vicious nature.
'PINA BIANCHI 22. Attractive, Italian descent. An emotional girl. Deeply attracted to Clark, and sees a completely different side of him. She is intelligent but ingenuous.
'BIANCHI 55. Pina's father. A wealthy Italian migrant. Well-educated but no pretentions. [sic] He is addicted to cards, plays regularly for high stakes. Honest, likeable, strong character.
'BILL WOOD 24. A big youth, and a born thug. Untidy, badly spoken, vicious.
'KEITH MORGAN 22. Smaller than Wood, makes up in slyness what he lacks in size. A streak of cowardice that he covers with bravado. He and Wood form Clark's gang, and are completely under his sway. ABLE TO DRIVE.
'COSTA / MARTINO / CONTI Friends of Bianchi. Around same age or younger. Equally addicted to cards, all are well-off businessmen. Of all the Italians, only Costa and Martino have more than the slightest trace of accent.
'SPORTS STORE PROPRIETOR 40's. Small part, few lines. A suburban businessman.
'ESPRESSO BAR OWNER 40's. Italian, tendency to melodrama and over-acting. Small part.
'THREE POLICEMEN'.