Amy Carlson is an American actress. Her acting career started in the 1990s. During this period, she appeared on the TV shows Missing Persons and The Untouchables. She then became known for her starring role as Josephine Watts on the TV series Another World. She next appeared on the miniseries Thanks of a Grateful Nation. In the 2000s, she became known for her role as Alex Taylor on Third Watch. Afterwards, she joined the main cast of the short-lived series Peacemakers. She next starred as Kelly Gaffney on Law & Order: Trial by Jury. In the 2010s, she is best known for starring as Linda Reagan on Blue Bloods. She’s also had roles in the films Green Lantern and Natural Selection.