Elisabeth Sladen was a British actress best known for her role as Sarah Jane Smith in the long-running science fiction series Doctor Who. She first appeared in the show in 1973 and quickly became a fan favorite, known for her intelligence and bravery. Sladen's character was a companion to the Third Doctor, played by Jon Pertwee, and later the Fourth Doctor, portrayed by Tom Baker. In addition to her work on Doctor Who, Sladen starred in her own spin-off series, The Sarah Jane Adventures, which aired from 2007 to 2011. This show introduced her character to a new generation of viewers and showcased her enduring popularity. Elisabeth Sladen's contributions to television and her impact on science fiction continue to be celebrated by fans worldwide.