★ 8.5 
Acting
Seamus Dever
Seamus Dever is best known for The Rookie, Titans, Charmed and NCIS. Seamus Dever was born on July 27, 1976. Seamus Dever is 50 years old (born July 27, 1976).
- Born
- July 27, 1976 (50 years old)
- Place of birth
- Flint, Michigan, USA
Biography
Seamus Dever (born July 27th, 1976) is an American actor, best known for playing Detective Kevin Ryan in the television series Castle (2009).
Known for
Filmography
- —Bosch: Start of WatchOfficer Hastings
- 2024TrackerMax Miller
- 2023True LiesReed
- 2023Waco: The AftermathAndy the German
- 2021NCIS: HawaiʻiScott
- 2021Kung FuMax DeVeer
- 2020HuntersTomasz Arndt
- 2018The RookieChaz Bachman
- 2018Take TwoTodd Garlin
- 2018TitansTrigon
- 2017LegionDon Eichman
- 2016MacGyverGriggs
- 2009CastleKevin Ryan
- 2009NCIS: Los AngelesAlexi Goncharov
- 2009Drop Dead DivaTyler Mack
- 2009Dark BlueNick Perry
- 2007Mad MenChuck
- 2007Army WivesDr. Chris Ferlinghetti
- 2005ThresholdAgent Detoro
- 2005Ghost WhispererRich Henderson
- 2005Close to HomeJustin Matthews
- 2004CSI: NYCharles Cooper
- 2003Cold CaseHank Dempsey
- 2003NCISGraham Thomas
- 2002CSI: MiamiPaul Billings
- 2002Without a TraceRonald Phelps
- 2001Crossing JordanTom Murch
- 2000CSI: Crime Scene InvestigationAdam Gilford
- 1999UndressedRandy
- 1998CharmedMitchell Haines
- 1997Pensacola: Wings of GoldLewis
- 1995JAGCaden Duran
Frequently asked questions
What movies and shows has Seamus Dever been in?
Seamus Dever is best known for The Rookie, Titans, Charmed and NCIS.
When was Seamus Dever born?
Seamus Dever was born on July 27, 1976. (Flint, Michigan, USA)
How old is Seamus Dever?
Seamus Dever is 50 years old (born July 27, 1976).
Updated: October 29, 2026 ·