John Allen NelsonActingAugust 28, 1959 (66 years old)San Antonio, Texas, USAPopularity: 1IMDbBiographyFrom Wikipedia, the free encyclopedia John Allen Nelson (born August 28, 1959) is an American actor.Known For8.2Grey's AnatomyArthur Soltanoff8.3Criminal MindsDan Murphy7.6NCISLloyd Manditsky7.6CSI: Crime Scene InvestigationRoger Gentry8.4FriendsPaul8.0CastleWalter Dennis7.824Walt Cummings7.7CSI: MiamiMike Rydell7.5Murder, She WroteTod Sterling7.2Without a TraceMark Duncan7.9Rizzoli & IslesRobby Davenport6.0BaywatchJohn D. CortFilmographyMovies15TV Shows32AllCast12Crew4Browse All2000s4.7Feast III: The Happy FinishShitkicker5.9Baywatch: Hawaiian WeddingJohn D. Cort1990s4.4ShelterMartin Roberts7.0XXX's & OOO'sAndy St. James5.0Criminal PassionConnor Ashcroft6.0Best of the Best 2Screenplay5.8American YakuzaScreenplay4.1Sunset HeatWriter4.5Rich Men, Single WomenTravis1980s7.0Perry Mason: The Case of the Lethal LessonFrank Wellman Jr.6.6Killer Klowns from Outer SpaceDave Hanson3.6Deathstalker III: The Warriors from HellDeathstalker5.7Saigon CommandosTimothy Bryant5.8HunkHunk Golden