Nathan Fillion (born March 27, 1971) is a Canadian-American actor. He played the leading roles of Captain Malcolm "Mal" Reynolds on Firefly and its film continuation Serenity and Richard Castle on Castle. As of 2018, he stars as John Nolan on The Rookie and is an executive producer on the show as well as its spin-off series, The Rookie: Feds.
Fillion has acted in traditionally distributed films like Slither and Trucker, Internet-distributed films like Dr. Horrible's Sing-Along Blog, television soap operas, sitcoms, and theatre. His voice is featured in animation and video games, such as the Bungiegames Halo 3, Halo 3: ODST, Halo: Reach, Destiny, and Destiny 2, along with the 343 Industries game Halo 5: Guardians and the television series M.O.D.O.K. (2021).
Fillion first gained recognition for his work on One Life to Live in the contract role of Joey Buchanan, for which he was nominated for the Daytime Emmy Award for Outstanding Younger Actor in a Drama Series, as well as for his supporting role as Johnny Donnelly in the sitcom Two Guys and a Girl.
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Known For
Superman
Guy Gardner / Green Lantern
2025
Skincare
Brett Wright
2024
Deadpool & Wolverine
Headpool (voice)
2024
Guardians of the Galaxy Vol. 3
Master Karja
2023
Everything I Ever Wanted To Tell My Daughter About Men
Duke
2022
Adrienne
Self
2021
The Suicide Squad
T.D.K.
2021
The Disney Family Singalong - Volume II
Self
2020
The Death and Return of Superman
Hal Jordan / Green Lantern (voice)
2019
Night Hunter
Quinn
2019
Reign of the Supermen
Green Lantern / Hal Jordan (voice)
2019
Henchmen
Captain Superior (voice)
2018
The Death of Superman
Hal Jordan / Green Lantern (voice)
2018
Yamasong: March of the Hollows
Shojun (voice)
2017
Cars 3
Sterling (voice)
2017
Robot Chicken DC Comics Special III: Magical Friendship
Green Lantern (voice)
2015
Being Canadian
Self
2015
The Thrilling Adventure Hour Live
Cactoid Jim
2015
Justice League: Throne of Atlantis
Green Lantern / Hal Jordan (voice)
2015
Guardians of the Galaxy
Monstrous Inmate
2014
Robot Chicken DC Comics Special II: Villains in Paradise
Green Lantern / Black Adam (voice)
2014
Highway of Tears
Narrator
2014
Party Central
Johnny (voice)
2014
Percy Jackson: Sea of Monsters
Hermes
2013
Justice League: The Flashpoint Paradox
Hal Jordan / Green Lantern (voice)
2013
Monsters University
Johnny (voice)
2013
Much Ado About Nothing
Dogberry
2013
Browncoats Unite: Firefly 10th Anniversary Special
Himself
2012
Robot Chicken: DC Comics Special
Green Lantern / Mr. Freeze (voice)
2012
Justice League: Doom
Green Lantern (voice)
2012
O Brave New World
Self
2011
'The Office' Skit from the Emmys
Richard Castle
2011
Green Lantern: Emerald Knights
Hal Jordan / Green Lantern (voice)
2011
Super
The Holy Avenger
2010
Castle
Richard Castle · (173 episodes)
2009
Wonder Woman
Col. Steve Trevor (voice)
2009
Dr. Horrible's Sing-Along Blog
Captain Hammer
2008
Commentary! The Musical
2008
Trucker
Runner
2008
The Making of Dr. Horrible's Sing-Along Blog
Self
2007
Waitress
Dr. Jim Pomatter
2007
White Noise 2: The Light
Abe Dale
2007
Done the Impossible
Self
2006
Slither
Bill Pardy
2006
Serenity
Malcolm 'Mal' Reynolds
2005
Outing Riley
Luke Riley
2004
Water's Edge
Robert Graves
2003
The Ellen DeGeneres Show
Self · (1 episode)
2003
Pasadena
(3 episodes)
2001
Dracula 2000
Father David
2000
Blast from the Past
Cliff
1999
Saving Private Ryan
Minnesota Ryan
1998
Ordeal in the Arctic
Master Warrant Officer Tom Jardine
1993
Strange and Rich
Walter Hoade
Bupkis
Ace Spade · (1 episode)
2023
The Recruit
CIA Director Alton West · (5 episodes)
2022
The Rookie: Feds
John Nolan · (3 episodes)
2022
The Jennifer Hudson Show
Self · (1 episode)
2022
Peacemaker
Guy Gardner / Green Lantern · (1 episode)
2022
Monsters at Work
Johnny (voice) · (8 episodes)
2021
Marvel's M.O.D.O.K.
Simon Williams / Wonder Man (voice) · (2 episodes)
2021
Resident Alien
Octopus (voice) · (2 episodes)
2021
Resident Alien
42 (voice) · (4 episodes)
2021
The Kelly Clarkson Show
Self · (1 episode)
2019
The Rookie
John Nolan · (126 episodes)
2018
Big Mouth
Nathan Fillion (voice) · (9 episodes)
2017
Big Mouth
(6 episodes)
2017
Santa Clarita Diet
Gary West · (6 episodes)
2017
A Series of Unfortunate Events
Jacques Snicket · (9 episodes)
2017
A Series of Unfortunate Events
Jacques Snicket (voice) · (1 episode)
2017
American Housewife
Nathan Fillion · (2 episodes)
2016
Geeking Out
Self · (1 episode)
2016
HarmonQuest
Tetter Spice · (1 episode)
2016
CelebriD&D
Jolene Glaplok · (1 episode)
2015
Con Man
Jack Moore · (25 episodes)
2015
Assassin Banana
Chick del Monte / Assassin Banana (voice) · (3 episodes)
2015
The Real History of Science Fiction
Self · (1 episode)
2014
Rick and Morty
Cornvelious Daniel (voice) · (1 episode)
2013
Brooklyn Nine-Nine
Mark Devereaux · (1 episode)
2013
Drunk History
Wernher von Braun · (1 episode)
2013
Gravity Falls
Preston Northwest (voice) · (4 episodes)
2012
Talking Dead
Self · (1 episode)
2011
Conan
Self · (1 episode)
2010
Modern Family
Rainer Shine · (7 episodes)
2009
Community
Bob Waite · (2 episodes)
2009
James Gunn's PG Porn
Chris · (1 episode)
2008
Dr. Horrible's Sing-Along Blog
Captain Hammer · (3 episodes)
2008
The Big Bang Theory
Nathan Fillion · (1 episode)
2007
The Guild
Nathan Fillion · (2 episodes)
2007
Drive
Alex Tully · (6 episodes)
2007
American Dad!
American Businessman Klaus (voice) · (1 episode)
2005
American Dad!
Liver / Joel Larson (voice) · (1 episode)
2005
Desperate Housewives
Adam Mayfair · (11 episodes)
2004
Lost
Kevin Callis · (1 episode)
2004
The Venture Bros.
Brown Widow (voice) · (4 episodes)
2004
Justice League Unlimited
Vigilante (voice) · (2 episodes)
2004
The Soup
Self · (1 episode)
2004
Miss Match
Adam Logan · (6 episodes)
2003
Firefly
Mal Reynolds · (11 episodes)
2002
Through the Night with...
Self · (1 episode)
2002
Maggie Winters
Ronald · (18 episodes)
1998
Two Guys and a Girl
Johnny Donnelly · (60 episodes)
1998
Total Security
Troy Larson · (13 episodes)
1997
The View
Self · (1 episode)
1997
Buffy the Vampire Slayer
Caleb · (5 episodes)
1997
King of the Hill
Frisbee Guy (voice) · (1 episode)
1997
The Outer Limits
Michael Ryan · (1 episode)
1995
LIVE with Kelly and Mark
Self - Guest · (2 episodes)
1988
Saturday Night Live
Self - Cameo (uncredited) · (1 episode)
1975
One Life to Live
(2 episodes)
1968