Portrait of Seamus Dever

Seamus Dever

Bio: Seamus Dever (born July 27th, 1976) is an American actor, best known for playing Detective Kevin Ryan in the television series Castle (2009).
Born: Tue, Jul 27 1976
Birthplace: Flint, Michigan, USA
Seamus Dever is 48 years old
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Acting Roles
Crew Roles

Movies (Acting Roles)

Sorted by Release Date
Poster of A Great Divide
A Great Divide
Seamus Dever was
46 in A Great Divide
as 'Ranger Tom Drake'.
Wed, Jun 14 2023
Poster of Invitation to a Murder
Invitation to a Murder
Seamus Dever was
46 in Invitation to a Murder
as 'Lawrence Kane'.
Fri, May 05 2023
Poster of Awaken
Awaken
Seamus Dever was
44 in Awaken
as 'Henry Viser'.
Thu, May 13 2021
Poster of Mindgame
Mindgame
Seamus Dever was
40 in Mindgame
as 'Ray'.
Sun, Jan 01 2017
Poster of Ready or Not
Ready or Not
Seamus Dever was
32 in Ready or Not
as 'Marc'.
Thu, Jan 01 2009
Poster of Hollywoodland
Hollywoodland
Seamus Dever was
30 in Hollywoodland
as 'Phillip'.
Thu, Aug 31 2006
Poster of McBride: The Doctor is Out...Really Out
McBride: The Doctor is Out...Really Out
Seamus Dever was
28 in McBride: The Doctor is Out...Really Out
as 'Allen'.
Sun, Jun 12 2005
Poster of Mystery Woman: Snapshot
Mystery Woman: Snapshot
Seamus Dever was
28 in Mystery Woman: Snapshot
as 'Billy'.
Fri, Jan 28 2005
Poster of Nikki and Nora
Nikki and Nora
Seamus Dever was
27 in Nikki and Nora
as 'Officer Paul Cordone'.
Thu, Jan 01 2004
Poster of Outside the Law
Outside the Law
Seamus Dever was
25 in Outside the Law
as 'Rick Michell'.
Tue, Jun 25 2002
Poster of Monkey Love
Monkey Love
Seamus Dever was
25 in Monkey Love
as 'Aaron Miles'.
Wed, Jun 12 2002
Poster of She's No Angel
She's No Angel
Seamus Dever was
25 in She's No Angel
as 'Cricket'.
Mon, Mar 04 2002
Poster of Shooting LA
Shooting LA
Seamus Dever was
24 in Shooting LA
as 'Colin'.
Mon, Jan 01 2001
Poster of The Black
The Black
Seamus Dever will be
48+ in The Black
as 'Dr. Simon Carver'.
Unreleased

TV Shows (Acting Roles)

Sorted by Release Date
Ages in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
Poster of Waco: The Aftermath
Waco: The Aftermath
Seamus Dever was
46+ in Waco: The Aftermath
as 'Andy the German'.
First Air Date
Sun, Apr 16 2023
Poster of True Lies
True Lies
Seamus Dever was
46+ in True Lies
as 'Reed'.
First Air Date
Wed, Mar 01 2023
Poster of NCIS: Hawai'i
NCIS: Hawai'i
Seamus Dever was
45+ in NCIS: Hawai'i
as 'Scott'.
First Air Date
Mon, Sep 20 2021
Poster of Kung Fu
Kung Fu
Seamus Dever was
44+ in Kung Fu
as 'Max DeVeer'.
First Air Date
Wed, Apr 07 2021
Poster of Hunters
Hunters
Seamus Dever was
43+ in Hunters
as 'Tomasz Arndt'.
First Air Date
Thu, Feb 20 2020
Poster of The Rookie
The Rookie
Seamus Dever was
42+ in The Rookie
as 'Chaz Bachman'.
First Air Date
Tue, Oct 16 2018
Poster of Titans
Titans
Seamus Dever was
42+ in Titans
as 'Trigon, Trigon / Captain Frank Finney'.
First Air Date
Fri, Oct 12 2018
Poster of Take Two
Take Two
Seamus Dever was
41+ in Take Two
as 'Todd Garlin'.
First Air Date
Thu, Jun 21 2018
Poster of Legion
Legion
Seamus Dever was
40+ in Legion
as 'Don Eichman'.
First Air Date
Wed, Feb 08 2017
Poster of MacGyver
MacGyver
Seamus Dever was
40+ in MacGyver
as 'Griggs'.
First Air Date
Fri, Sep 23 2016
Poster of NCIS: Los Angeles
NCIS: Los Angeles
Seamus Dever was
33+ in NCIS: Los Angeles
as 'Alexi Goncharov'.
First Air Date
Tue, Sep 22 2009
Poster of Dark Blue
Dark Blue
Seamus Dever was
32+ in Dark Blue
as 'Nick Perry'.
First Air Date
Wed, Jul 15 2009
Poster of Drop Dead Diva
Drop Dead Diva
Seamus Dever was
32+ in Drop Dead Diva
as 'Tyler Mack'.
First Air Date
Sun, Jul 12 2009
Poster of Castle
Castle
Seamus Dever was
32+ in Castle
as 'Kevin Ryan'.
First Air Date
Mon, Mar 09 2009
Poster of Mad Men
Mad Men
Seamus Dever was
30+ in Mad Men
as 'Chuck'.
First Air Date
Thu, Jul 19 2007
Poster of Army Wives
Army Wives
Seamus Dever was
30+ in Army Wives
as 'Dr. Chris Ferlinghetti'.
First Air Date
Sun, Jun 03 2007
Poster of Ghost Whisperer
Ghost Whisperer
Seamus Dever was
29+ in Ghost Whisperer
as 'Rich Henderson'.
First Air Date
Fri, Sep 23 2005
Poster of Close to Home
Close to Home
Seamus Dever was
29+ in Close to Home
as 'Justin Matthews'.
First Air Date
Tue, Sep 20 2005
Poster of Threshold
Threshold
Seamus Dever was
29+ in Threshold
as 'Agent Detoro'.
First Air Date
Fri, Sep 16 2005
Poster of CSI: NY
CSI: NY
Seamus Dever was
28+ in CSI: NY
as 'Charles Cooper'.
First Air Date
Wed, Sep 22 2004
Poster of Cold Case
Cold Case
Seamus Dever was
27+ in Cold Case
as 'Hank Dempsey'.
First Air Date
Sun, Sep 28 2003
Poster of NCIS
NCIS
Seamus Dever was
27+ in NCIS
as 'Graham Thomas, Inspector General Gabriel LaRoche'.
First Air Date
Tue, Sep 23 2003
Poster of Without a Trace
Without a Trace
Seamus Dever was
26+ in Without a Trace
as 'Ronald Phelps'.
First Air Date
Thu, Sep 26 2002
Poster of CSI: Miami
CSI: Miami
Seamus Dever was
26+ in CSI: Miami
as 'Paul Billings'.
First Air Date
Mon, Sep 23 2002
Poster of Crossing Jordan
Crossing Jordan
Seamus Dever was
25+ in Crossing Jordan
as 'Tom Murch'.
First Air Date
Mon, Sep 24 2001
Poster of CSI: Crime Scene Investigation
CSI: Crime Scene Investigation
Seamus Dever was
24+ in CSI: Crime Scene Investigation
as 'Adam Gilford, Drew Rich'.
First Air Date
Fri, Oct 06 2000
Poster of Undressed
Undressed
Seamus Dever was
22+ in Undressed
as 'Randy'.
First Air Date
Mon, Jul 26 1999
Poster of Charmed
Charmed
Seamus Dever was
22+ in Charmed
as 'Mitchell Haines'.
First Air Date
Wed, Oct 07 1998
Poster of Pensacola: Wings of Gold
Pensacola: Wings of Gold
Seamus Dever was
21+ in Pensacola: Wings of Gold
as 'Lewis'.
First Air Date
Mon, Sep 15 1997
Poster of JAG
JAG
Seamus Dever was
19+ in JAG
as 'Caden Duran'.
First Air Date
Sat, Sep 23 1995