When Charlie's old friend from Scotland Yard is murdered when they attend a police convention in New York, Chan picks up the case he was working on.

Sidney Toler
as Charlie Chan

Victor Sen Yung
as Jimmy Chan

Donald MacBride
as Insp. Vance

Leyland Hodgson
as Robert Boggs

Melville Cooper
as Herbert 'Snuffy' Fenton

John Sutton
as Richard Jeffery

Kane Richmond
as Ralph Percy

Marjorie Weaver
as Patricia Shaw

Robert Lowery
as David Elliot

Ricardo Cortez
as George Kirby
CinemaSerf
I think Scotland Yard may have saved a considerable amount of pension pay-outs, had they decided much earlier on that being acquainted with "Charlie Chan" was just way too risky for anyone...! This time around, it's "Insp. Drake" (Frederick Warlock) who bites the dust, at a police convention in New ...