"Private Detective Philo Vance gets involved with a succession of murders and a mystery concerning the disappearance of an emerald that has been smuggled into the United States."
Alan Curtis
as Philo Vance
Vivian Austin
as Laurian March (as Terry Austin)
Frank Jenks
as Ernie Clark
Tala Birell
as Tina Cromwell
Gavin Gordon
as Oliver Tennant
Cliff Clark
as Inspector Walsh
James Burke
as Lt. Burke
Toni Todd
as Geegee Desmond
Francis Pierlot
as Roberts
Joseph Crehan
as Ellis Mason
Garnett Marks
as Charles O'Mara
Grady Sutton
as Willetts
Charles Mitchell
as Guy Harkness
Joanne Frank
as Norma Harkness
Dan Seymour
as Jeffrey Connor
Karolyn Grimes
as Pat Roberts
Kenneth Farrell
as Alberto the Costume Designer (uncredited)
Alvin Levin
Original Music Composer
Arthur St. Claire
Writer
Howard Welsch
Producer
W. Donn Hayes
Editor
Jackson Rose
Director of Photography
Basil Wrangell
Director
Lawrence Taylor
Story
Eugene Conrad
Screenplay
Irving Friedman
Music Director
Ivan Volkman
Assistant Director
William Kiernan
Set Decoration
J.N.A. Hawkins
Sound
Perry Smith
Art Direction
W.C. Smith
Eugene Joseff
Costume Design
S.S. Van Dine
Characters
Alfred DeGaetano
Supervising Editor
Armor Marlowe