Steve Reevis, an actor known for playing Shep Proudfoot in the Coen brothers’ Fargo and also appeared in the Best Picture Oscar winner Dances With Wolves, died unexpectedly on December 7 of unknown causes while at home on the Blackfeet reservation in Montana. He was 55.

Reevis is a member of the Blackfoot tribe and had his first role in film as a stunt rider in the 1987 film War Party. He went on to appear in many films including Geronimo, Last of the Dogmen, Twins, The Doors, Wild Bill, Crazy Horse, Texas Ranger and the 2005 remake of The Longest Yard. His television credits include the mini-series Into the West, JAG, Walker, Texas Ranger and many others.

In 1996’s Fargo, Reevis played the mechanic whose criminal past led his boss, car dealer Jerry Lundegaard (William H. Macy), to ask where he could find someone to kidnap his wife. He later attacks Carl Showalter (Steve Buscemi) and others in a motel room before going on the lam.

Reevis had a nonspeaking role as a Cheyenne warrior in Dances with Wolves starring Kevin Costner.

His roles in Crazy Horse and Fargo earned him an award from First Americans in the Arts in 1996. He continued to receive many accolades throughout his acting career.

Reevis is survived by his wife, Macile, and four children.