Dr. Daniel Corrigan (born c.2194) was a human physician and scientist who spent more than half of his life living and working on Vulcan, at the famed Vulcan Academy of Sciences. Born in Ireland on Earth, Corrigan was one of the first off-world scientists to come to the Academy. He was teamed with the Vulcan healer Sorel for the first time in the late 2220s; their combined efforts resulted in the conception and birth of Spock, the first Vulcan-human hybrid. Their professional (and personal) association would last for well over four decades after that - by 2267, they were renowned as the best medical team on Vulcan. Corrigan would be the primary physician for many of the humans living on Vulcan, including Amanda Grayson, wife of Sarek and mother of Spock.