Tudi Joanne Roche (born July 19, 1955) is an American singer and actress best known for her recurring role on Home Improvement as Jill Taylor's sister Carrie (she and Patricia Richardson share a strong resemblance). She also has three Broadway shows to her credit. She attended Texas Christian University but did not graduate and is married to Richard Karn, who played Al on the show. They have one son, Cooper Karn Wilson.