Originally from Louisiana, Walls moved to Los Angeles with his family and attended Beverly Hills High School. He is a Graduate of the University of San Francisco arts program where he studied Theater and Film.
Walls excelled in sports while in high school and college, competing in Track and Field and Basketball.
He knew that acting is what he wanted to do since he was eleven years old after watching "The Radio Flyer," which is also the first movie he memorized from start to finish. In 2007, he attended and graduated from University of San Francisco's art program where he studied Theatre and Film.
Walls' television work includes runs on Lincoln Heights, Friday Night Lights, The Secret Life of the American Teenager, Pair of Kings and the daytime soap opera Passions.
In film, Walls can be seen in Shark Night 3D and the critically acclaimed drama From the Head as well as the Christian-themed film Believe Me.
Wall also appeared as Sir Lancelot in the second and fifth seasons of ABC's Once Upon a Time and appears as Shawn in the series Power on the STARZ network.