Kristen Johnston

Kristen Angela Johnston is an American actress. Best known for her work on television sitcoms, she twice won the Primetime Emmy Award for Outstanding Supporting Actress in a Comedy Series for her role as Sally Solomon in 3rd Rock from the Sun. She starred as divorce attorney Holly Franklin on The Exes, and as recovering addict Tammy Diffendorf on Mom. She has also appeared in the films Austin Powers: The Spy Who Shagged Me (1999), The Flintstones in Viva Rock Vegas (2000), Music and Lyrics (2007), and Bride Wars (2009).