Carlisle Cullen is a fictional character from the Twilight series created by Stephenie Meyer. He is a vampire who was born in the 1640s in England and later transformed into a vampire by Vampire Aro. Carlisle is known for his compassionate nature and dedication to saving lives, which leads him to work as a doctor. As the patriarch of the Cullen family, Carlisle is married to Esme Cullen and is the father figure to several adopted vampire children, including Edward Cullen and Alice Cullen. He is unique among vampires for his ability to resist human blood, choosing instead to feed on animal blood.