Walsh participated in theater while attending the University of Arizona. She is Italian as well since her mother is Italian. Her roles include Dr. Addison Montgomery on the ABC television dramas Grey's Anatomy and Private Practice, and Rebecca Wright on the short-lived NBC sitcom Bad Judge.
- She played Drew Carey's love interest on The Drew Carey Show, and she appeared on several episodes of Conan O'Brien's late night talk show.
- She played Fiona in "#REALITYHIGH", which Anne Winters (Chlöe Rice) was also in as "Holly"
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- Kate Walsh at TriviaTribute.com