Sarah Jane Smith /

Sarah Jane Smith is a fictional character played by the late Elisabeth Sladen in the long-running British BBC Television science-fiction series Doctor Who and its spin-offs K-9 and Company and The Sarah Jane Adventures. An investigative journalist, Sarah Jane is a regular companion of the Third and Fourth incarnations of the Doctor, on the programme from 1973 to 1976 (seasons 11 – 14), and returns in the Fifth Doctor story The Five Doctors (1983), the 30th-anniversary story Dimensions In Time (1993), and most recently in the episodes "School Reunion" (2006), "The Stolen Earth" / "Journey's End" (2008) and The End of Time (2010) alongside the Tenth Doctor, played by David Tennant, and other companions of his era. She appeared with the Eleventh Doctor in Death of the Doctor. One of the Doctor's longest serving companions, she appears as a regular in 18 stories over four seasons of the classic series and four episodes of the revived series, and is the first companion to appear in a spin-off, the 1981 television pilot K-9 and Company. She is the central character of the series The Sarah Jane Adventures. Sarah Jane first appears in the Third Doctor serial The Time Warrior (1973), where