The first Vulcan to attend Starfleet Academy, Spock is regarded as the finest first officer in the fleet. His father is a Vulcan ambassador, his mother a schoolteacher from Earth. Spock's Vulcan nature is constantly at war with his human side. Because he was never able to fit in on either Vulcan or Earth, Spock considers Starfleet his true home. He is intensely loyal to Captain Kirk.