Seamus Dever

Seamus Dever

ActingBorn July 27, 1976 (age 49)Flint, Michigan, USA

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

Castle

Castle

Kevin Ryan

NCIS

NCIS

Gabriel LaRoche

NCIS: Los Angeles

NCIS: Los Angeles

Alexi Goncharov

Army Wives

Army Wives

Dr. Chris Ferlinghetti

Titans

Titans

Trigon

McBride: The Doctor is Out...Really Out

McBride: The Doctor is Out...Really Out

Allen

Mystery Woman: Snapshot

Mystery Woman: Snapshot

Billy

Hollywoodland

Hollywoodland

Phillip

Filmography

Acting

2024·Max Miller·1 ep

A Great Divide

A Great Divide4.4

2023·Ranger Tom Drake

Invitation to a Murder

Invitation to a Murder5.5

2023·Lawrence Kane

Waco: The Aftermath

Waco: The Aftermath6.9

2023·Andy the German·5 eps

True Lies

2023·Reed·1 ep

NCIS: Hawaiʻi

NCIS: Hawaiʻi7.7

2021·Scott·1 ep

Kung Fu

2021·Max DeVeer·1 ep

Awaken

2020·Henry Viser

Hunters

2020·Tomasz Arndt·1 ep

The Rookie

2018·Chaz Bachman·1 ep

Titans

2018·Trigon·2 eps

Take Two

2018·Todd Garlin·1 ep

Legion

2017·Don Eichman·1 ep

Mindgame

MacGyver

2016·Griggs·1 ep

NCIS: Los Angeles

NCIS: Los Angeles7.5

2009·Alexi Goncharov·3 eps

Dark Blue

2009·Nick Perry·2 eps

Drop Dead Diva

Drop Dead Diva7.7

2009·Tyler Mack·1 ep

Castle

2009·Kevin Ryan·173 eps

Ready or Not

Ready or Not4.1

Mad Men

2007·Chuck·1 ep

Army Wives

2007·Dr. Chris Ferlinghetti·7 eps

Hollywoodland

Hollywoodland6.1

Ghost Whisperer

Ghost Whisperer8.1

2005·Rich Henderson·1 ep

Close to Home5.9

2005·Justin Matthews·1 ep

Threshold

2005·Agent Detoro·2 eps

McBride: The Doctor is Out...Really Out

McBride: The Doctor is Out...Really Out7.2

Mystery Woman: Snapshot

Mystery Woman: Snapshot6.6

CSI: NY

2004·Charles Cooper·1 ep

Nikki and Nora

Nikki and Nora1.6

2004·Officer Paul Cordone

Cold Case

2003·Hank Dempsey·1 ep

NCIS

2003·Graham Thomas·1 ep

Without a Trace

Without a Trace7.2

2002·Ronald Phelps·1 ep

CSI: Miami

2002·Paul Billings·1 ep

Outside the Law

Outside the Law4.1

2002·Rick Michell

Monkey Love

2002·Aaron Miles

She's No Angel

She's No Angel4.3

Crossing Jordan

Crossing Jordan7.2

2001·Tom Murch·1 ep

CSI: Crime Scene Investigation

CSI: Crime Scene Investigation7.6

2000·Adam Gilford·1 ep

Undressed

1999·Randy·3 eps

Charmed

1998·Mitchell Haines·1 ep

Pensacola: Wings of Gold

Pensacola: Wings of Gold6.3

1997·Lewis·1 ep

JAG

1995·Caden Duran·1 ep

The Black

Dr. Simon Carver

Crew

Mindgame

2017·Executive Producer

Photos