Cast & crew
Mr. Sardonicus (1961)
Directed by William Castle Written by Ray Russell
Cast
| Guy Rolfe | Baron Sardonicus |
| Oskar Homolka | Krull |
| Ronald Lewis | Sir Robert Cargrave |
| Audrey Dalton | Maude Sardonicus |
| Vladimir Sokoloff | Henryk Toleslawski |
| Erika Peters | Elenka |
| Lorna Hanson | Anna |
| Constance Cavendish | Mrs. Higgins (uncredited) |
| James Forrest | Geoffery Wainwright (uncredited) |
| Tina Woodward | The Girl (uncredited) |
| Mavis Neal Palmer | Head Nurse (uncredited) |
| Charles H. Radilak | Stationmaster (uncredited) |
| David Janti | Janku (uncredited) |
| Franz Roehn | Gravedigger (uncredited) |
| Annalena Lund | First Girl (uncredited) |
| Ilse Burkert | Second Girl (uncredited) |
| William Castle | Self (uncredited) |
Crew
| Von Dexter | Original Music Composer |
| Ray Russell | Screenplay |
| William Castle | Director |
| Ray Russell | Novel |
| William Castle | Producer |
| Burnett Guffey | Director of Photography |
| Dona Holloway | Associate Producer |
| Cary Odell | Art Direction |
| Edwin H. Bryant | Editor |
| Ben Lane | Makeup Supervisor |
| R. Robert Rosenbaum | Assistant Director |
| Charles J. Rice | Sound Supervisor |
| James Crowe | Set Decoration |
| James Z. Flaster | Sound |
| Homer Van Pelt | Still Photographer |