The Master Mind (1920) Online
The defense attorney who was unable to obtain the acquittal of an innocent young man concocts a complicated and diabolical scheme to revenge himself upon the prosecutor.
| Credited cast: | |||
 | Lionel Barrymore | - | Henry Allen |
 | Gypsy O'Brien | - | Maggie |
| Ralph Kellard | - | Wainwright |
| Bradley Barker | - | Creegan |
 | Charles Brandt | - | Hank |
| Marie Shotwell | - | Sadie |
| Bernard Randall | - | Diamond Willie |
| Charles Edwards | - | The Butler |
| Louis Stern | - | Undetermined Role |
| Alma Aiken | - | Undetermined Role |
| Rest of cast listed alphabetically: | |||
 | Percy Helton | - | Younger brother |