The Original Series' highest-rated episodes are based around the same central premise, and there's a good reason for that.

The Next Generation took significantly more risks with its plot, characters, and overall storytelling proving that is superior to the original.

If you watch Star Trek shows a lot, like I do, you start to notice some familiar faces. With decades of television shows and movies under its belt, it's only natural that the franchise has approached actors to play multiple roles over the years.

The Original Series remains popular to this day, with the enduring optimism Gene Roddenberry wove being more relevant now than ever.