Amy Lynn Carlson is an American actress known for her roles as Linda Reagan in the CBS police procedural Blue Bloods, Alex Taylor on the NBC drama Third Watch, and Josie Watts in the NBC daytime soap opera Another World.

Blue Bloods is an American police procedural drama television series that has been airing on CBS since September 24, 2010. Its main characters are members of the fictional Reagan family, an American, Irish Catholic family in New York City with a history of work in law enforcement. Blue Bloods stars Tom Selleck as New York City Police Commissioner Frank Reagan; other main cast members include Donnie Wahlberg, Bridget Moynahan, Will Estes and Len Cariou for all 14 seasons, plus Amy Carlson, and Sami Gayle.