Daniel Colter is a minor supporting character on Once Upon a Time. He was a stable boy who worked for Regina's family and served as the latter's aid during her riding lessons. Daniel looked after Rocinante, Regina's prized steed, and eventually he and Regina became involved in a secret romantic relationship and planned to be together. However, Cora, Regina's wicked and powerful mother, had much greater plans for her child, that involved her marrying a king, not a stable boy. Regina and Daniel then planned to elope, but Cora ultimately murdered him to keep her daughter on the track she'd chosen for her. Daniel was brought back to life by Dr. Frankenstein, but his pain became too much to bear and Regina was forced to let him go and mourn his death yet again.