as Charlie Chan
as Jimmy Chan
as Lucy Borgia Manderley
as Paul Manderley
as Dr. Retling
as Walter Hartford
as Brenda Hartford
as Mme. Saturnia, aka Lizzie
as Watson King
as Carl Detheridge
as Prof. Gleason
as Arthur Fletcher
as The Bus Driver
as The Hotel Manager
as The Majordomo
as (unconfirmed)
as (scene deleted)