Spock

Spock is awesome.

He uses logic as a weapon, a tool to twist the mind, and he can use his weird mental powers to render entire armies baffled. He is a Vulcan from the planet Vulcan, and, like all members of his species, he has buried his emotions to use logic and knowledge as weapons instead.

He also has a catchphrase, 'Live Long and Prosper'.

He helps the Federation in their wars, and used to serve on the USS Enterprise. He was the science officer, which makes Data his spiritual successor.