Janet Montgomery is an English television and film actress. In Salem, she portrays the lead character Mary Sibley, and briefly portrayed Countess Von Marburg in the series finale.
- Janet Montgomery has always been fascinated by the supernatural. To better prepare for the role, she read about the history of witchcraft and Wicca. 
- In one of the Ask Salem releases, Montgomery revealed the toad used as a familiar peed on her.