About 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). Johnston made her professional stage debut with New York's Atlantic Theater Company, founded by playwright David Mamet, where she appeared in many productions including As You Like It and Stage Door. After numerous auditions in 1996, she won the part, and starred on the show from 1996 to 2001, winning two Emmy Awards for Outstanding Supporting Actress in a Comedy Series.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.