Mystery | July 31, 1928
Mystery | July 31, 1928
| Producers | Julius Hagen Productions |
| Original title | The Passing of Mr. Quin |
| Directors | Julius Hagen, Leslie S. Hiscott |
| Writers | Leslie S. Hiscott, Agatha Christie |
as Dr. Alec Portal
as Mrs. Eleanor Appleby
as Vera, the Maid
as Prof. Appleby
as Cook
as Derek Cappel
as Landlady