Balance of Terror
Kirk matches wits with a Romulan Commander (Mark Lenard) as the Enterprise chases a cloaked Romulan ship, which destroyed four Federation outposts, into the Neutral Zone. Centurion: John Warburton. Decius: Lawrence Montaigne. Yeoman Rand: Grace Lee Whitney. Stiles: Paul Comi. Spock: Leonard Nimoy. Kirk: William Shatner. Uhura: Nichelle Nichols.