Alfie Evan Allen (born September 12, 1986) is an English actor, best known for his role as Theon Greyjoy on the HBO fantasy series Game of Thrones (2011–2019), for which he received a nomination for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series in 2019. In film, he is best known for his starring roles in John Wick (2014), The Predator (2018), and Jojo Rabbit (2019).
His older sister is singer Lily Allen. Allen's first professional appearance was in a one-off Channel 4 comedy, You Are Here in 1998. The same year, Allen and his sister Lily appeared in the 1998 film, Elizabeth, which was produced by their mother. His early work included small roles in Agent Cody Banks 2: Destination London, Atonement and BBC1's historical hospital drama, Casualty 1907. In 2008, he took over Daniel Radcliffe's role in the stage play, Equus. He has continued to work in films, appearing in Soulboy, The Kid, Freestyle and Powder in 2010. In 2012, he starred in the British thriller, Confine.
La Cha Cha
Dooty Davies
2021
Visitation
Safe Harbor
Tobias Chapman · (8 episodes)
2025
McVeigh
Tim
2024
SAS Rogue Heroes
Jock Lewes · (6 episodes)
2022
Night Teeth
Victor
2021
How to Build a Girl
John Kite
2020
White House Farm
Brett Collins · (6 episodes)
2020
Jojo Rabbit
Finkel
2019
Game of Thrones: The Last Watch
Self
2019
The Predator
Lynch
2018
Harlots
Isaac Pincher · (8 episodes)
2017
Football: A Brief History by Alfie Allen
Self - Host · (2 episodes)
2017
Close to the Enemy
Ringwood · (7 episodes)
2016
Patient Seven
The Man (segment: "The Body")
2016
Pandemic
Wheeler
2016
John Wick
Iosef Tarasov
2014
Plastic
Yatesey
2014
The Body
The Man
2013
Confine
Henry
2012
Powder
Wheezer
2011
Game of Thrones
Theon Greyjoy · (63 episodes)
2011
Accused
Michael Lang · (1 episode)
2010
SoulBoy
Russ Mountjoy
2010
Freestyle
Gez
2010
The Kid
Dominic
2010
Freefall
Ian
2009
Boogie Woogie
Photographer
2009
Moving On
Dave Farrow · (1 episode)
2009
Flashbacks of a Fool
Kevin Hubble
2008
The Other Boleyn Girl
King's Messenger
2008
Joe's Palace
Jason
2007
Cherries
James
2007
Atonement
Danny Hardman
2007
Sixty Six
Younger Tout
2006
Stoned
Harry
2005
Jericho
Albert Hall · (1 episode)
2005
The Golden Hour
Clive · (1 episode)
2005
Agent Cody Banks 2: Destination London
Berkhamp on Double Bass
2004
Spaced
Skateboard Kid (uncredited) · (1 episode)
1999
You Are Here
Son
1998
Elizabeth
Arundel's Son
1998
The Yob
Child in Promo
1988
Atomic
Max · (1 episode)
The Comic Strip Presents...
Child in Promo · (1 episode)
1982