- Photo: Universal Pictures/Retna Ltd.3 of 8
Role: Doc. Emmett Brown
Original actor: Christopher Lloyd
Our pick: Jim Carrey
Doc Brown is wiry, eccentric and wide-eyed, three adjectives that have also been used to describe Jim Carrey throughout his career. His role as Count Olaf in "Lemony Snicket" proves that he can at least look like a mad, absentminded scientist. A heaping spoon of Count Olaf, a dash of Fire Marshall Bill and a pinch of Ace Ventura and we're set with a contemporary Doc Brown.