The fact that Starfleet's enemies can also become heroes is one of many reasons that the Star Trek universe is so rich. Star Trek features some of the most iconic alien species in all of science ...

All we learned about these new humanoid (and bald) aliens from Delta IV is they were hyper-sexualized. So much so, that they had to take a vow of celibacy to join Starfleet. We barely saw any ...

Technically speaking, the first Orion to appear in Star Trek was Marta in Whom Gods Destroy. Vina, as "Orion slave girl" was a Talosian illusion in The Cage, and doubly so in The Menagerie, Part II.