Sarah Jane is a fictional character from the British television series Doctor Who. She first appeared in 1973 as a companion to the Fourth Doctor, portrayed by Elisabeth Sladen. Sarah Jane is known for her intelligence, bravery, and resourcefulness, often assisting the Doctor in battling various alien threats. In addition to her role in Doctor Who, Sarah Jane starred in her own spin-off series, The Sarah Jane Adventures, which aired from 2007 to 2011. This show focused on her adventures as a journalist and alien investigator, appealing to both children and adults while exploring themes of friendship and courage.