Actor Mark Deklin

Mark Deklin (born December 3, 1967) is an American actor and fight coordinator. He starred in the Fox primetime drama Lone Star, the ABC comedy-drama GCB, the Lifetime comedy-drama Devious Maids, and in 2017 joined the ABC political drama Designated Survivor as Senator Jack Bowman. He voiced Deimos in the video game God of War: Ghost of Sparta. He also was the voice of Warden in the video game Tom Clancy’s Rainbow Six Siege.

Early life and education

Deklin was born on December 3, 1967 in Pittsburgh, Pennsylvania. He graduated from Thomas Jefferson High School in 1986. He holds a B.A. in English and History from the Pennsylvania State University, an M.F.A. in acting from the University of Washington in Seattle, and is a certified member of the Society of American Fight Directors.


A classically-trained stage actor, Deklin has worked extensively on Broadway and off-Broadway. On television, he has had recurring roles as Dr. Matthew Shaw in the Fox series Justice from 2006 to 2007, as Elliott Mayer in the CBS sitcom The Ex List in 2008, as Stan Edwards in the CBS drama Hawaii Five-O from 2011 to 2012, as Joe Nazario in the NBC police drama Shades of Blue in 2015, as Agent Cameron Davies in the TNT series Rizzoli & Isles in 2016, as Dr. William Landon in the TNT procedural Major Crimes in 2017, and as Roy in the Netflix comedy Grace and Frankie from 2018 to 2019. He has also had voice roles in several video games, including Call of Duty 3, Metal Gear Solid: Peace Walker, God of War: Ghost of Sparta, and Halo Wars 2, and co-starred in the films Riverworld, Tarzan, The Wish List, Tides of War, The Wedding Chapel, Never Say Macbeth, Switched for Christmas, The Answer, and Mini’s First Time.

Deklin starred in the Fox primetime drama Lone Star as Trammell Thatcher, the ABC soapy comedy GCB as Blake Reilly, and the Lifetime comedy-drama Devious Maids as Nicholas Deering. He has also had a number of guest-starring roles in television series, including Sex and the City, Charmed, Frasier, CSI: Crime Scene Investigation, Desperate Housewives, Nip/Tuck, Two and a Half Men, Life On Mars, The Mentalist, Warehouse 13, Hot in Cleveland, Big Love, Major Crimes, Castle, Criminal Minds, and The Blacklist.


Year Title Role
2005 Herbie: Fully Loaded ESPN reporter
2006 Mini’s First Time Ian Boyd
2007 Never Say Macbeth Scott
2013 Tarzan John Greystoke (voice)
2014 The Answer Cole, Sr.
Year Title Role Notes
1999 Guiding Light Joe 2 episodes
2000 Ed Dr. Scott Benson Episode: “The Whole Truth”
2002 Sex and the City Ship Officer Matt Cook Episode: “Anchors Away”
2004 Charmed Bosk Episode: “I Dream of Phoebe”
2004 Frasier Clint 2 episodes
2004 One on One Helmut Episode: “The Play’s the Thing”
2005 Tides of War Captain Galasso Television film
2005 CSI: Miami Russell Edge Episode: “Sex & Taxes”
2005 Hot Properties Hunk Episode: “When Chloe Met Marco”
2006 CSI: NY Rick Smith Episode: “Stuck on You”
2006 Las Vegas Jeff McKee Episode: “Fidelity, Security, Delivery”
2006–2007 Justice Dr. Matthew Shaw 7 episodes
2006–2007 Desperate Housewives Bill Pearce 2 episodes
2007 Shark Peter Rhodes Episode: “Burning Sensation”
2008–2009 The Ex List Elliott Mayer 5 episodes
2009 Big Love Jack Episode: “Prom Queen”
2009 Life on Mars Ronald Harris Episode: “Coffee, Tea, or Annie”
2009 Better Off Ted Mordor 2 episodes
2009 Nip/Tuck Skip Pierce Episode: “Lola Wlodkowski”
2010 Two and a Half Men Marcus Episode: “Crude and Uncalled For”
2010 The Mentalist James Kinsey Episode: “Redline”
2010 Riverworld Sam Clemens Television film
2010 Romantically Challenged Doug Episode: “Don’t Be Yourself”
2010 The Wish List Dr. Erik Cavallieri Television film
2010 Lone Star Trammell Thatcher Main role
2011–2012 Hawaii Five-0 Stan Edwards 3 episodes
2011 Hot in Cleveland Kirk Stark 2 episodes
2012 GCB Blake Reilly Main role
2013 Castle Corey Francis / Noah Kesswood Episode: “Significant Others”
2013 The Wedding Chapel Roger Waters Television film
2013 CSI: Crime Scene Investigation Ryan Miller Episode: “Torch Song”
2014 Devious Maids Nicholas Deering Main role (season 2)
2014 Warehouse 13 Ted Episode: “Secret Services”
2015 Criminal Minds Patrick Jon Murphy Episode: “Breath Play”
2016 Shades of Blue Joe Nazario 2 episodes
2016 Rizzoli & Isles FBI Special Agent Cameron Davies 2 episodes
2017 Designated Survivor Senator Jack Bowman 5 episodes
2017 Elementary Jake Bozeman Episode: “Moving Targets”
2017 Switched for Christmas Greg Turner Television film
2017 Major Crimes Dr. William Landon 4 episodes
2018–2019 Grace and Frankie Roy 4 episodes
2018 Christmas in Evergreen: Letters to Santa Kevin Miller Television film
2019 Blindspot J.B. Kelly Episode: “The One Where Jane Visits an Old Friend”
2019 The Code Commander Noah Hewitt 2 episodes
2019 Younger Cameron Episode: “Stiff Competition”
2019 Love and Sunshine Jake Terry Television film
2019 The Blacklist Gov. Richard Sweeney Episode: “Hannah Hayes (No. 125)”
2019 Christmas in Evergreen: Tidings of Joy Kevin Miller Television film
2020 Blue Bloods Donnie Hassett 2 episodes
2020 Meet Me at Christmas Beau Television film

Video games

Year Title Role Notes
2006 Call of Duty 3 Maj. Gerald Ingram
2010 God of War: Ghost of Sparta Deimos
2016 Mafia III Additional voices
2017 Halo Wars 2 Jerome-092
2018 Red Dead Redemption 2 O’Driscolls Gang
2019 Tom Clancy’s Rainbow Six: Siege Warden Operation Phantom Sight

External Links

Actor Mark Deklin – Wikipedia

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