Tom Baker was one of the greatest actors to portray our favorite Time Lord and that run was for almost a full decade. Decisively different from his previous incarnation, he brought in a level of comedy and quirks, along with the full intellect of the Doctor that helped to make Dr. Who one of the greatest television shows of all time.

P.S. holy crap...that darned scarf is long as hell, and was such a pain to get right. Dear lord...but it was still fun.