Kali Michele Rocha is an American actress. She is known for her roles as Karen Rooney on the Disney Channel sitcom Liv and Maddie, Mary Burns on Man with a Plan, the voice of the 911 operator in the movie Buried with Ryan Reynolds, Summer Dickie on the sitcom Sherri, Principal Emma Wiggins on the sitcom Teachers, Dr. Sydney Heron on Grey's Anatomy (S7-S8), and the flight attendant in Meet the Parents and Meet the Fockers.