Sienna Tiggy Guillory is an English actress and former model. She portrayed Jill Valentine in the Resident Evil action-horror film franchise. Her other prominent roles include elf princess Arya Dröttningu in the fantasy-adventure film Eragon, and the title role in the TV miniseries Helen of Troy.
She is the daughter of American folk guitarist Isaac Guillory and Tina Thompson, an English model.
Known For
Heavyweight
Dr Collins
2025
Meg 2: The Trench
Driscoll
2023
Don't Hang Up
Mrs. Kolbein
2016
High-Rise
Jane Sheridan
2015
The Wicked Within
Bethany
2015
The Goob
Janet
2014
The List
Alison Corwin
2013
Resident Evil: Retribution
Jill Valentine
2012
The Last Belle
Rosie
2011
The Big Bang
Julie Kestral / Lexie Persimmon
2011
Program Alice: Activated
Self
2010
Resident Evil: Afterlife
Jill Valentine
2010
Perfect Life
Anne
2010
Gunless
Jane Taylor
2010
I'm Here
Anne
2010
Virtuality
Rika Goddard
2009
Inkheart
Resa
2008
The Heart of the Earth
Kathleen Crown
2007
Eragon
Arya
2006
Rabbit Fever
Newscaster
2006
Silence Becomes You
Grace
2005
Game Babes
Self
2004
Beauty
Cathy Wardle
2004
Resident Evil: Apocalypse
Jill Valentine
2004
Love Actually
Jamie's Girlfriend
2003
The Principles of Lust
Juliette
2003
The Time Machine
Emma
2002
Superstition
Julie McCullough
2001
Late Night Shopping
Susie
2001
Sorted
Sunny
2000
One of Us
Two Days, Nine Lives
Kate
2001
Desperate Journey
Strangers
Laura
2024
Silo
Hanna Nichols · (2 episodes)
2023
A Banquet
Holly
2022
Clifford the Big Red Dog
Maggie
2021
Defining Moments
Lisa
2021
Son of the South
2021
Raised by Wolves
Mary · (1 episode)
2020
Nuclear
Mother
2019
Remember Me
Selma
2019
The Performance
Sarah
2017
Stan Lee's Lucky Man: The Bracelet Chronicles
Eve · (1 episode)
2017
The Warriors Gate
Annie
2016
Abduct
Angelica Dark
2016
Stan Lee's Lucky Man
Eve · (28 episodes)
2016
Fortitude
Natalie Yelburton · (25 episodes)
2015
Metropolis
(2 episodes)
2015
Being American
Susan
2014
Luther
Mary Day · (4 episodes)
2010
Virtuality
Rika Goddard · (1 episode)
2009
Resident Evil: Diary of an Apocalypse
Self
2007
The Virgin Queen
Lettice Knollys · (4 episodes)
2006
Criminal Minds
Kate Joyner · (2 episodes)
2005
Agatha Christie's Marple
Julia Simmons · (1 episode)
2004
Helen of Troy
Helen of Troy · (2 episodes)
2003
Rufus
2003
The Last Minute
Kayak Girl
2002
Kiss Kiss (Bang Bang)
Kat
2001
Take a Girl Like You
Jenny Bunn · (3 episodes)
2000
CSI: Crime Scene Investigation
Kacey Monahan · (1 episode)
2000
The Future Lasts A Long Time
Blue
1996
The Buccaneers
Lady Felicia Marabel · (2 episodes)
1995
Riders
Fenella Maxwell
1993