Thordis Brandt is a German-born American actress.

Thordis Brandt was born in Germany of Norwegian and German parents. She moved to Canada as a young girl and was raised initially at a farm in St. Norbert, Winnipeg, then moved to a mink ranch in Bella Coola, British Columbia, then to Vancouver in 1958. In 1963, Thordis graduated as a registered nurse from St. Paul's Hospital School of Nursing.

She moved to Santa Monica, California where she continued to practice her nursing in private duty. One of her jobs in private duty was serving actress Patricia Neal. Ms. Neal recommended Thordis to other actors and actresses and Thordis became known as the "actor's nurse". Thordis began her career as a nurse advisor in Ben Casey where she made appearances on the show.

After retiring from acting, she continued nursing in Beverly Hills.