Wallis is a resident of Sandy Shores, Blaine County. He is an elderly hillbilly who is often seen drinking at the Yellow Jack Inn with a friend. He wears a cap back-to-front and overalls and has sideburns.
Events of GTA V
At the beginning of the mission Trevor Philips Industries, Wallis is seen drinking at the Yellow Jack Inn and cheering on a fight against Josef and an unknown assailant.
At the beginning of the mission Crystal Maze, Janet calls Wallis a "dumb, ignorant, white trash hillbilly," to which Wallis agrees.