The Second Doctor

Patrick Troughton played the Second Doctor, an alien Time Lord who traveled in time and space in the TARDIS with his companions. He was a scruffy, light hearted and bumbling tramp, but he hid a more firm and slightly darker side that he would often use to manipulate his enemies and allies for the greater good. His original companions were the sophisticated socialite Polly and working class sailor Ben Jackson, who travelled with his previous incarnation. They were later joined by 18th century Jacobite Jamie McCrimmon, who would become the Second Doctor's most loyal and trusted companion. Following Ben and Polly's departures, the Doctor and Jamie were joined by the Victorian orphan Victoria Waterfield and 21st century astrophysicist Zoe Heriot. Jamie and Zoe stayed with the Second Doctor until the Time Lords sent them back to their own times, with their memories of all but their first encounter with him wiped.