Seamus-Dever
Seamus Dever | Biography

Quick Wiki

  • Full Name Seamus Patrick Dever
  • Nickname Seamus Dever
  • Occupation Actor
  • Nationality American
  • Birthplace Flint, Michigan, USA
  • Birth Date Jul 27, 1976
  • Age 46 Years, 1 Months
  • Net Worth (Not Disclosed)
Detective Kevin Ryan on Series 'Castle'

Seamus Dever | Biography

Recurring Character Trigon On DC 'Titans'

Seamus appeared on Castle as Detective Kevin Ryan. He portrayed the character in all 173 episodes of the series. Moreover, his real-life wife Juliana Seamus also appeared alongside him in the series as Jenny Ryan, i.e., Detective Kevin Ryan's wife.


Seamus Dever is a renowned American actor and producer. He has mainly gained worldwide fame for his portrayal of Detective Ryan in the TV series Castle.

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Who is Seamus Dever?

Seamus is a television and film actor. He is best recognized among TV fans as Detective Ryan from the famous ABC TV series Castle (2009-2016).

Seamus initiated his acting career in 1999 with a small role in the TV series Pensacola: Wings of Gold. He did numerous similar minor acting works before finally landing his first prominent part in the ABC soap opera General Hospital in 2008. He appeared in around 45 episodes of the series as Dr. Ian Devlin.

Seamus's other notable acting works are in Army Wives (2008 TV series), Ready or Not (2009 film), Mindgame (2017 short film), Titans (2018-2019 TV series), etc. Lately, he has guest-starred as Kapitan Alexi in the CBS TV series NCIS: Los Angeles in 2021. In addition, he is currently working on several of his upcoming projects like Invitation to a Murder and The Extraordinary Farewell. These projects are currently in the post-production stage.

Early Bio and Education

Seamus was born in Flint, Michigan, USA, on 27 July 1976. The veteran actor has not yet publicly revealed his parents' details and early bio.

He completed his Bachelor's of Arts Degree in Theater for formal education from the Northern Arizona University. Later, he enrolled at Carnegie Mellon University and earned his Master's Fine Arts Degree in Acting.

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'Castle'

Castle is a crime drama TV series that follows the life events of the series lead personality Richard Castle portrayed by Nathan Fillion. The show premiered its first season's pilot episode on the ABC channel on 9 March 2009. After a successful run of 8 seasons and 173 episodes, it canceled its production from March 2009 to May 2016.

Seamus appeared on Castle as Detective Kevin Ryan. He portrayed the character in all 173 episodes of the series. Moreover, his real-life wife Juliana Seamus also appeared alongside him in the series as Jenny Ryan, i.e., Detective Kevin Ryan's wife.

'Titans'

Titans is a DC superhero TV series that first premiered on the DC Universe channel on 12 October 2018. The show aired on DC Universe for two seasons and later transferred its broadcasting rights to HBO Max for the third season.

The series has released a total of 3 seasons with 37 episodes in it. Its cast members include several famous names like Joshua Orpin, Brenton Thwaites, Anna Diop, Curran Walters, Ryan Potter, Damaris Lewis, etc. Among them is actor Seamus Dever who played the recurring role of Trigon, aka Frank Finney, on the series. He appeared in three episodes of Titans from 2018 to 2019. 

Wife

Seamus Dever married his wife Juliana Dever on 26 May 2006. The pair have not disclosed much information about their love life to the public. 

As of 2022, the pair have completed their 15 years together. Moreover, on their 15th marriage anniversary, Juliana shared a picture of their wedding day on her Instagram.

Seamus-Dever-Wife
Seamus Dever and His Wife Juliana Dever Wedding Picture (Photo: Instagram)

Juliana Dever is an American actress born in Missouri, the USA, on 17 December 1971. She stepped into the acting industry in 2004 with a minor role in the film The List. She then stayed in the field with several roles in TV series and movies like Time and Tide (2006 film), Castle (2010-2016 TV series), Another Mother (2020 TV movie), etc. Lately, Juliana appeared as Rachel Hawkerson in the Fox TV series 9-1-1 (2021).

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