He is portrayed by Randall "Tex" Cobb, who also portrayed Slag.
In the movie, after H.I. (Nicolas Cage) and Ed (Holly Hunter) kidnapped a baby from Nathan Arizona Sr., Arizona is approached by the bounty hunter Smalls who offers to find the child. Nathan Sr. declines the offer, believing that Smalls is his son's kidnapper. Smalls decides to recover the child anyway to sell on the black market. He begins tracking Gale and Evelle and learns of their bank robbery plans.
When Smalls finally confront H.I. and gets into a fight with him, it seems H.I. is at his mercy. However, H.I, reveals a pin that he pulled from one of the grenades from Smalls' vest. Smalls struggles to remove the grenade, only to be killed when it explodes.
Leonard Smalls has dark brown hair, minor skin speckles and blue eyes. Smalls has a brown skull necklace on his neck and wears a green commando-vest. His vest has fur and a short brown spikes on the left sleeve. He carries around Mk 2 hand grenades strapped to his chest. He keeps gun-holsters on his back which often holds two Rossi Overland shotguns. He wears short fingerless biker gloves. The back end of both his bikers boots are skinned and have visible bones on the back of them. He wears a long sliver chain on his vest. There is a skull tattoo on his right bicep that says "Mamma Didn't Love Me", in addition to this he has a Mr. Horsepower tattoo on his chest.