From Wikipedia, the free encyclopedia Amy Lynn Carlson (born July 7, 1968 height 5' 6" (1,68 m)) is an American actress best known for playing Josie Watts on Another World and Alex Taylor on Third Watch. More recently, she played Kelly Gaffney on the short-lived NBC courtroom drama, Law & Order: Trial by Jury. She currently plays Linda Reagan on the CBS drama Blue Bloods.When Carlson was 13, her family... see more