John Kerry

as Jonathan Rothschild

as Marine Veteran #3

as Dr. Frost

as Scared Tourist #1 (1 episode)

as Kennedy Gordon

as Everett Banks

as Dr. Rexif

as Dex

as Chief

as Man at Disco

as The Spook (9 episodes)

as Eli Grohl (1 episode)

as Man in Lifeboat

as Commander West

as Brian O'Malley

as Tynan

as Admiral

as George Webster

as Security Guard (1 episode)

as Federal Marshal Davis

as Uniformed Cop

as Larch

as Lieutenant Commander

as Killer Cop (uncredited)

as Sergeant Miller