OLE — A sleepy-eyed janitor
ROBERT PELTHAM — An architect of devious methods
“THE MASKED MISTRESS” — Who holds half the bait
DELLA STREET — Secretary par excellence
GERTIE — Switchboard operator and information clerk
ABIGAIL ESTHER TUMP — Who has imagination and ambition
PAUL DRAKE — Of the Drake Detective Agency
ALBERT TIDINGS — A mistrusted trustee
NADINE TIDINGS — His estranged wife
SERGEANT HOLCOMB — Of the Homicide Squad
BYRL GAILORD — A social climber
CARL MATTERN — Tiding’s secretary
MR. LOFTUS — Senior partner of Loftus & Cale, brokers
MR. GANTEN — Legal adviser to Loftus & Cale
EMERY B. BOLUS — President of the Western Prospecting Company
ADELLE HASTINGS — A penniless heiress
ARTHMONT A. FREEL — Who indulges in genteel blackmail
HAMILTON BERGER — District attorney
and PERRY MASON