Star Trek VI: The Undiscovered Country - ROLE 1: Captain Spock (Leonard Nimoy) ROLE 2: Captain James T. Kirk (William Shatner). Stardate 9529.1. Federation-Klingon peace talks saved, this is the last voyage of the Enterprise under Kirk's command before turning over the ship to the next generation of explorers. Starfleet orders the damaged Enterprise to Earth. Spock has another idea... Note: Yoostar scenes are often available both as single video clips and in scene packs. Please consider your purchase carefully before downloading.