A young, lively man with the appearance of a 14 year old, the Thirteenth Doctor first appeared to the Twelfth Doctor to help him double team his out of control wife Mrs. Robinson in the 2017 Christmas special, A Christmas Carol 2: Electric Boogaloo. Known for wearing a pea blue jacket and matching shirt, sunglasses and known affectionately by fans as Jazz Hands, named after his quirky tendency to suffer from Parkinson's Disease.