Britt "Diesel" Fillenworth: Gina Bad Horse's boyfriend/companion, a skilled hand-to-hand combatant, with a reputation for violence and erratic, near-sociopathic behavior. It is often remarked (generally contemptuously) that he is white, although he reacts badly to this, claiming to be 1/16 West Texas Kickapoo. In Gina's absence, he breaks into Red Crow's office at the casino, steals something critical (which he later hands off to FBI agent Nitz), trashes the office and kills Red Crow's dogs. After a long, drawn-out fight with Dashiell he is arrested, only to escape before Red Crow and his men can take any action against him. He lived with his abusive father until he decided he wasn't going to take it anymore and setup his father to be robbed and killed. The items he stole from Red Crow have recently been revealed to be the scalps of the two murdered FBI agents. Diesel is eventually released from jail by Nitz, who plans to have him eliminated under the guise of being taken to a safehouse. Informed of this plan by Dash, he kills Nitz's assistant Newsome before being himself killed by Dash.