Janet Montgomery
Janet Montgomery Infobox picture
General Information
Full Name

Janet Ruth Montgomery


Bournemouth, Dorset, England, United Kingdom


Mary Sibley, Countess Von Marburg


1, 2, 3

Janet Montgomery is an English television and film actress. In Salem she portrays the lead character Mary Sibley and briefly she portrays Countess Von Marburg in series finale.

Early and Personal Life

Janet was born in Bournemouth but now lives in Islington, London with both her boyfriend and her bulldog named Guthrie.


Janet originally trained as a dancer at the Stella Mann College of Performing Arts in Bedford. However later chose to persue acting professionally instead of dance. Initially it was difficult for her to gain acting representation because of her lack of training in drama. After she produced a play alongside her friend Gethin Anthony she achieved a breakout.

In 2008, she appeared in some of her first projects such as the television series skins, tv movie Dis/Connected, and short film Flushed. The following year she appeared in several straight to dvd movies like the Hills Run Red, Wrong Turn 3:Left For Dead and lifetime movie Accused at 17. Later in 2010 she appeared in her first theatrically released films such as Dead Cert, and the Black Swan. Later that year she appeared in her first comedy Our Idiot Brother in which she received rave reviews. She was later offered roles in television series like The League and Human Target.

Later in 2012 she portrayed the lead role in the television series Made In Jersey although the series was cancelled after only two episodes had aired she received compliments and a career boost. She later attracted the interest of Stephen Poliakoff from an audition tape for Dancing on the Edge and was given the job via Skype. She later appeared in the Spies of Warsaw, the Gothica ABC pilot, Downton Abbey, and This Is Us. She currently portrays Mary Sibley in Salem.



Year Title Role Notes
2008 Dis/Connected Lucy TV movie
2008 Flushed Queen Bitch Short film
2009 The Hills Run Red Serina Straight-to-DVD
2009 Wrong Turn 3: Left for Dead Alex Straight-to-DVD
2010 Accused at 17 Fallyn Werner Lifetime movie
2010 Dead Cert Giselle First Theatrical release
2010 The Rapture Ruth
2010 Black Swan Madeline
2011 Our Idiot Brother Lady Arabella
2012 Scooby-Doo! Spooky Games Diane Direct-to-DVD special
2014 10 Things I Hate About Life


Year Title Role Notes
1997 Short Change Uncredited Extra 1 episode
2008 Skins Beth Episode "Tony"
2010-2011 Entourage Jennie Recurring Role (10 Episodes)
2010 The League Ambrosia Episode "Vegas Draft"
2010-2011 Human Target Ames Series Regular (11 Episodes)
2011-2012 Merlin Princess Mithian Episodes "The Hunter's Heart" and "Another's Sorrow"
2012 Made In Jersey Martina Garretti Starring Role
2013 Dancing on the Edge Sarah 5 part mini series
2013 Spies of Warsaw Anna Starring Role
2013 Gothica Grace Van Helsing Pilot not picked up
2013 Downton Abbey Freda Dudley Ward Episode "The London Season"
2014 Salem Mary Sibley Female Lead Role
2016 This Is Us Olivia Maine Guest Star (4 episodes)




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See Also