Seamus Dever
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
The Rookie
85%
Chaz Bachman
2018
Titans
79%
Trigon / Trigon / Captain Frank Finney
2018
Charmed
82%
Mitchell Haines
1998
NCIS
76%
Gabriel LaRoche / Graham Thomas
2003
Castle
80%
Kevin Ryan
2009
Ghost Whisperer
81%
Rich Henderson
2005
CSI: Miami
77%
Paul Billings
2002
Legion
75%
Don Eichman
2017
Tracker
76%
Max Miller
2024
A Great Divide
47%
Ranger Tom Drake
2023
Invitation to a Murder
56%
Lawrence Kane
2023
Waco: The Aftermath
69%
Andy the German
2023
True Lies
61%
Reed
2023
NCIS: Hawaiʻi
77%
Scott
2021
Kung Fu
75%
Max DeVeer
2021
Awaken
37%
Henry Viser
2020
Hunters
71%
Tomasz Arndt
2020
The Rookie
85%
Chaz Bachman
2018
Titans
79%
Trigon / Trigon / Captain Frank Finney
2018
Take Two
69%
Todd Garlin
2018
Legion
75%
Don Eichman
2017
Mindgame
20%
Ray
2017
Mindgame
20%
Executive Producer
2017
MacGyver
73%
Griggs
2016
NCIS: Los Angeles
75%
Alexi Goncharov
2009
Dark Blue
69%
Nick Perry
2009
Drop Dead Diva
77%
Tyler Mack
2009
Castle
80%
Kevin Ryan
2009
Ready or Not
41%
Marc
2009
Mad Men
81%
Chuck
2007
Army Wives
75%
Dr. Chris Ferlinghetti
2007
Hollywoodland
61%
Phillip
2006
Ghost Whisperer
81%
Rich Henderson
2005
Close to Home
59%
Justin Matthews
2005
Threshold
70%
Agent Detoro
2005
McBride: The Doctor is Out...Really Out
69%
Allen
2005