1: Meet the infamous Vulcans who embraced their dark side.

2: T'Pol: Her time on Enterprise proved she's not all logic.

3: Sarek: Spock's dad had a hidden ruthless streak.

4: Valeris: Betrayal runs deep in this deceptive Vulcan.

5: Sela: A master manipulator in Romulan disguise.

6: V'Las: Destructive leader willing to sacrifice his own people.

7: Solin: A devious Vulcan with a thirst for power.

8: Xon: An enigmatic figure with a sinister agenda.

9: Discover the darkest corners of Vulcan society in Star Trek lore.