Cameron Wallis is a Canadian saxophonist, multi-instrumentalist, composer, and arranger. Born in Winnipeg, Manitoba he currently resides in Montreal, Quebec. As one half of the jazz duo OneUpOneDown, Wallis released the critically acclaimed albums Preface (2005) and Straight to Plan B (2007). He arranged, performed, and composed music for Sophie Milman's 2008 Juno award winning album Make Someone Happy, and has recorded and arranged for Montreal vocalist Susie Arioli, amongst others.