The Crime Doctor gets involved in the case of the poisoning of a wealthy industrialist.
as Dr. Robert Ordway
as Ellen Trotter
as Mrs. Keppler / Evelyn Fenton Cartwright
as Detective Rief
as Mallory Cartwright
as Paul Ashley
as Mrs. Diana Burns
as Patricia Cornwall
as Jimmy Trotter
as Betty Watson
as Addison Burns
as Dr. Carter
as Detective Yarnell
as Walter Burns
as Mr. George H. Fenton
