Sam Shepard has joined the cast of Discovery Channel’s miniseries Klondike, which marks the channel’s first scripted project. Shepard replaces Chris Cooper, who pulled out last week to attend to a personal matter. Based on Charlotte Gray’s novel Gold Diggers: Striking It Rich In The Klondike, the mini tells the story of six strangers and their collective fight for survival and wealth in a small frontier town in the remote Klondike. Shepard will play Father Judge, who has come to Klondike to atone for his violent past on a mission to save souls. Scott Free Prods, Discovery Entertainment One and Nomadic Pictures produce the mini, which is in production in Alberta, Canada. ICM Partners-repped Shepard will next be seen in the movies Mud, August: Osage County and Out Of The Furnace.