Miller began working in the entertainment industry at a very young age. She appeared in a commercial for Wonder Bread when she was just six months old and was later featured in an advertisement for Ivory Snow at age three. As a child model, she also graced the cover of Redbook magazine. Eventually, due to surgery required to remove a benign bone tumor, she stepped away from modeling and turned her focus toward acting.

Early Acting Career and Breakthrough Roles

Christa Miller's first primetime television role came in the sitcom Kate & Allie, where she had a guest appearance. Interestingly, her real-life aunt Susan Saint James starred in the same show. In 1992, Miller played a role in the television movie Stepfather III alongside Priscilla Barnes. These early roles laid the foundation for her future in television comedy.

Her television credits in the 1990s include guest appearances on notable series such as Seinfeld, where she portrayed two different characters in separate episodes, as well as Party of Five, Northern Exposure, The Fresh Prince of Bel-Air, and CSI: Miami. It was during her work on Seinfeld that Miller realized her strong interest in comedic roles.

Major Television Comedy Roles

Christa Miller became widely recognized for her role as Kate O'Brien on the sitcom The Drew Carey Show, a performance that significantly boosted her career and popularity. She went on to star in another successful comedy series, Scrubs, created by her husband, Bill Lawrence. Her portrayal of Jordan Sullivan in Scrubs earned her critical praise and led to a nomination for a Golden Satellite Award for Best Performance by an Actress in a Supporting Role in a Comedy or Musical Series.

She later joined the cast of Cougar Town, another comedy series created by Lawrence, further cementing her reputation as a versatile comedic actress. Miller also guest-starred on the sitcom Undateable in a live episode titled “A Live Episode Walks Into a Bar.”