Seamus Patrick Dever (born July 27, 1976) is an American actor known for his role as Detective Kevin Ryan in the ABC series Castle.

Early life

Dever was born in Flint, Michigan, and moved at the age of six to Bullhead City, Arizona, where he grew up. He graduated as valedictorian of Mohave High School, completed his undergraduate studies at Northern Arizona University, and holds MFAs in Acting from the Moscow Art Theatre and Carnegie-Mellon University.

Personal life

A lifetime member of the Actors Studio, Dever married Juliana Dever on May 27, 2006. Juliana played Kevin Ryan's wife Jenny on Castle. He is a cousin of Broadway actress Jeanne Arnold and Canadian singer-songwriter Feist.

Dever and his wife are vegetarians. Both are also supporters of Best Friends Animal Society.

Dever also starred in a celebrity episode of the American version of The Chase, in Season 3 (2014), where he scored 11 questions in the preliminaries and led a team with Dean Cain to defeat the Chaser, Mark Labbett.

Filmography

Film

YearTitleRoleNotes
2001Shooting LAColin
2002Monkey LoveAaron MilesCredited as Séamus Dever
2002Outside the LawRick Michell
2006HollywoodlandPhillip
2008Affairs in OrderCyrus
2008The Essence of DeppDylan
2009Ready or NotMarc
2014SequesteredObamaShort film
2015H. Henry Locke
2023Invitation to a MurderLawrence Kane
2023A Great DivideTom Drake

Television

YearTitleRoleNotes
1999Pensacola: Wings of GoldLewis1 episode: "Behind Enemy Lines"
2001She's No AngelCricketTV movie
2001UndressedRandy1 episode: "Episode #4.1"
2001Crossing JordanTom Murch1 episode: "Believers"
2003Without a TraceRonald Phelps1 episode: "Moving On"
2004Cold CaseHank Dempsey1 episode: "The House"
2005Mystery Woman: SnapshotBillyTV movie
2005JAGCaden Duran1 episode: "San Diego"
2005CharmedMitchell Haines1 episode: "Freaky Phoebe"
2005McBride: The Doctor Is Out...Really OutAllanTV movie
2005ThresholdAgent Detoro2 episodes: "Trees Made of Glass: Part 2", "Blood of the Children"
2005CSI: Crime Scene InvestigationAdam Gilford1 episode: "Bite Me"
2006CSI: NYCharles Cooper1 episode: "Live or Let Die"
2006NCISGraham Thomas1 episode: "Singled Out"
2007Close to HomeJustin Matthews1 episode: "Making Amends"
2007CSI: MiamiPaul Billings1 episode: "Kill Switch"
2008General HospitalDr. Ian Devlin45 episodes
2008Mad MenChuck1 episode: "For Those Who Think Young"
2008Army WivesDr. Chris Ferlinghetti7 episodes
2008Ghost WhispererRich Henderson1 episode: "Save Our Souls"
2008CSI: Crime Scene InvestigationDrew Rich1 episode: "Young Man with a Horn"
2009Drop Dead DivaTyler Mack1 episode: "The Dress"
2009–2016CastleDetective Kevin RyanMain cast 173 episodes Nominated – People's Choice Award for Favorite TV Bromance (shared with Jon Huertas)
2010Dark BlueNick Perry2 episodes: "Dead Flowers", "Personal Effects"
2012Chelsea LatelyKevin Ryan in Castle1 episode: "Episode 6.187 (Himself playing his Castle character)"
2014The ChaseHimself1 episode: "Starry Eyed: Celebrity Episode"
2018LegionDon Eichman1 episode: "Chapter 14"
2018Take TwoTodd Garlin1 episode: "Death Becomes Him"
2018–2019TitansTrigonRecurring 3 episodes
2019MacgyverCIA Officer Griggs1 Episode Mac+Fallout+Jack
2019The RookieChaz BachmanEpisode: "The Bet"
2020NCIS: Los AngelesAlexi GonchgarovEpisode: "Russia, Russia, Russia"
2023True LiesReed KesslerEpisode: "Honest Manipulations"
2023NCIS: Hawai'iScottEpisode: "Nightwatch Two"
2024TrackerMax MillerEpisode: "Man's Best Friend"
2024-NCISGabriel LaRocheRecurring 3 episodes

Video games

YearTitleRole
2002Soldier of Fortune II: Double HelixAdditional voices
2018Far Cry 5John Seed
2024Call of Duty: Black Ops 6Felix Neumann

External links