Actor · DirectorSeamus DeverJuly 27, 1976(47 years old)Flint, Michigan, USASeamus Dever (born July 27th, 1976) is an American actor, best known for playing Detective Kevin Ryan in the television series Castle (2009).SocialsInstagramTwitterIMDbKnown forCastleKevin RyanMad MenChuckCSI: Crime Scene InvestigationDrew RichNCISGraham ThomasNCIS: Los AngelesAlexi GoncharovTitansTrigonCharmedMitchell HainesThe RookieChaz BachmanLegionDon EichmanCSI: MiamiPaul BillingsWithout a TraceRonald PhelpsHuntersTomasz Arndt