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Doctor Who's Favorite Companion Was Almost Completely Different
Fan-favorite Doctor Who companion Sarah Jane Smith was almost very different. In 1973, Doctor Who introduced the Third Doctor's new companion, Sarah Jane Smith. Played by Elisabeth Sladen, Sarah Jane was a journalist who stumbled upon a Sontaran plot and soon wound up working alongside the Doctor. There's a sense in which Sarah Jane's debut marked a turning point in the show's history; Jon Pertwee's tenure as the Doctor had largely been Earthbound, with the members of an organization called UNIT serving as series regulars, and Sarah's introduction moved a step away from UNIT at last.