Poster of Cast and Crew in Star Trek - The Enemy Within (Season 1 - Episode 5) - The Enemy Within

Star Trek - Season 1 - The Enemy Within (Episode 5)

Plot: Split by a transporter malfunction into two beings with very different personalities, the resulting twin Captain Kirk proves that neither a purely evil nor a sweetly good captain can survive without the missing half.
Episode Aired On:
Thursday, October 6 1966
58 years ago