The script held in the Crawford Collection in the AFI Research Collection contains the following character notes (excluding regular characters):
'ROBERT CZERNAK The murderer. In his forties. His manipulations with clients money [sic] have lead [sic] him to the edge of ruin. To save his business he claims that the cat burglar killed his wife and stole her jewel collection. Must be able to drive.
'SY WEINTRAUB 35-40. Robert's best friend, and one of Robert's wealthier clients.
'CARA WEINTRAUB 30 Sy's wife. Good-natured, and trusts Robert implicitly.
'TOBY The young boy who sees the robbery at Robert's place.
'GAIL Toby's girlfriend.
'BLUEY Old reprobate who finds the settings. Was in the army and is still proud of it.
'CHICKA Bluey's mate. Like bluey [sic], but not as forceful.
'RUTHERFORD Head of a watchdog committee of the Stock Exchange. One scene.
[Note: Rutherford's character description has been circled in blue ink and a question mark written, in the same ink, in the right-hand margin.]
'WENDY Robert's secretary.
'MRS. MURRAY Robert's housekeeper.
'REMOVALIST
'MAINTENANCE MAN'.