17th episode of the second season of Star Trek: The Original Series

23rd episode of the first season of Star Trek: The Original Series

18th episode of the first season of Star Trek: The Original Series

Musical work by Wilbur Hatch

25th episode of the second season of Star Trek: The Original Series

26th episode of the first season of Star Trek: The Original Series

1967 film by Christian Nyby

fictional species in Star Trek

1958 film by Jack Arnold

9th episode of the second season of Star Trek: The Original Series

1959 film by Jack Arnold

22nd episode of the first season of Star Trek: The Original Series

episode of Star Trek: The Original Series (S3 E6)

1st episode of the third season of Star Trek: The Original Series

American science fiction television series (1966–1969)

25th episode of the first season of Star Trek: The Original Series

1964 film by Don Siegel

1974 television film directed by Richard A. Colla

1963 film by Herschel Daugherty

2nd episode of the second season of Star Trek: The Original Series