Star Trek VI: The Undiscovered Country Not rated yet! Star Trek VI: The Undiscovered Country 19911 h 53 min Click an icon to see more Overview The crews of the Enterprise and the Excelsior must stop a plot to prevent a peace treaty between the Klingon Empire and the Federation Metadata Director Nicholas Meyer Runtime 1 h 53 min Release Date 5 December 1991 Details Movie Media — Movie Status — Movie Rating — Images No images were imported for this movie. Actors Starring: William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan, George Takei, Nichelle Nichols, Walter Koenig, Christopher Plummer, Kim Cattrall, David Warner, Rosanna DeSoto, Brock Peters, Kurtwood Smith, Iman, Mark Lenard, Grace Lee Whitney, Leon Russom, John Schuck, Michael Dor, Paul Rossilli, Robert Easton, Michael Dorn