Grayson Hueser-Morris was a member of the Blue Devils bassline in 2019 and marched on the RCC bassline in 2019 and 2020.Other ensembles Grayson has marched with include Rise Percussion, the Troopers, and Blue Knights.

Originally from Denver, Colorado, Grayson and his wife Sammy live in Las Vegas where they moved after briefly living in Southern California to march. Besides teaching bass drum, Grayson works in musical instrument sales and attends Arizona State University Online, studying Sustainable Food Systems.