Catherine Turner has been a member of the OSM since 2010, and Principal Horn since 2022. She has also performed as Principal Horn with the Baltimore Symphony, Sun Valley Summer Symphony, and Colorado Music Festival, and has appeared as guest principal with the New York Philharmonic, San Francisco Symphony, Detroit Symphony, Cincinnati Symphony, National Arts Center Orchestra, Manitoba Chamber Orchestra, and Les Violons du Roy. She has performed as a soloist with the Colorado Music Festival Orchestra and the Aspen Music Festival Orchestra, and has been featured in recitals and masterclasses across North America. She is currently an instructor at McGill University and the National Youth Orchestra of Canada.

In her free time, Catherine is an accomplished amateur triathlete, a semi-pro baker, an enthusiastic lover of the outdoors, and the proud dog mom of a Spanish greyhound named Toast.