S'chn T'gai Skon

He was the grandfather of Spock.  He was a mathmation recruited by the Cochrane institute, to participate in testing a transporter. During the Romuleon War he was part of Warp Programs. He was the first Vulcan to translate the teachings of Surek.

Sybok

He is a misguided, brilliant and energetic Vulcan. He was extremely religious, as well as Spock’s older brother. He believed that Vulcans should not repress their emotions but express them. He manage to take Kirk and the crew of the Enterprise safely through the great barrier. He and the crew encountered a God-like entity which turned out to be an alien that was imprisoned on the planet. Sybok defended Kirk to his death from the mysterious aliens wrath.

Sarek

Sarek was born 2155. His father is Scon, his mother was never identified. He was married to a Vulcan princess and had a son before Spock, Sybok. He has great compassion for Earth and humanity, which is shown throughout the films.

Sha'Ka'Ree

This entity claimed to be God, but was nothing more than a mischievous alien. It had been imprisoned on a planet within the Great Barrier within the centre of the galaxy.