Ranking The Twilight Zone episodes that featured main Star Trek actors

2. Nightmare at 20,000 Feet (William Shatner)

William Shatner’s Bob sees a gremlin on the wing of a plane, no one believes him, and he slowly goes insane. It’s classic, though not exactly the social commentary many fans of The Twilight Zone are used to. It’s this high due to it being a classic.

1. Valley of the Shadow (James Doohan)

A man named Phillip arrives in a small town that is extremely secretive. It’s revealed they have advanced technology that could make the world a better place, but they refuse to share, as they feel mankind would just use it as a weapon. After attempting to test Phillip, the city finds that he is what they feared he was, a man who would use the devices as weapons and thus banish him from the city after erasing the memory of his time there.

Doohan doesn’t have a lot of lines in this, but the episode is among the best, just for the twist at the end. It may be a bit obvious now, but the first time through, the betrayal really hits.