Sarah Jane Smith (Robot, 1974)

Sarah Jane Smith (Robot, 1974)

Fourth Doctor and Sarah Jane (The Masque of Mandragora, 1976)

Fourth Doctor and Sarah Jane (The Masque of Mandragora, 1976)

Sarah Jane Smith in “The Five Doctors” (1983)

Sarah Jane in Planet of the Spiders (1974)

Sarah Jane in Planet of the Spiders (1974)

Advert for Doctor Who and the Pescatons (1976)

Masque of Mandragora comic panel from DWM

Sarah and Harry in Revenge of the Cybermen (1975)

Sarah and Harry in Revenge of the Cybermen (1975)

Elisabeth Sladen at Chicago TARDIS 2008

Elisabeth Sladen at Chicago TARDIS 2008

Elisabeth Sladen 1966 headshot

Elisabeth Sladen 1966 headshot

The Doctor checks on Sarah in the hospital (The Hand of Fear, 1976)

The Doctor checks on Sarah in the hospital (The Hand of Fear, 1976)

Sarah Jane Smith and Jo Grant/Jones in the Eleventh Doctor’s TARDIS, from “Death of the Doctor”

Sarah Jane in Death to the Daleks (1974)

Sarah Jane in “The Sontaran Experiment” (1975)

Sarah Jane in “The Sontaran Experiment” (1975)

Tom Baker and Elisabeth Sladen on the set of “The Seeds of Doom”

Tom Baker and Elisabeth Sladen on the set of “The Seeds of Doom”

Elisabeth Sladen on Blue Peter (2006)

Elisabeth Sladen on Blue Peter (2006)

Elisabeth Sladen during filming of Seeds of Doom

Sarah Jane in Terror of the Zygons (1975)

Sarah Jane and the Doctor in Terror of the Zygons (1975)

Sarah Jane Smith in Genesis of the Daleks (1975)

Sarah Jane Smith in Genesis of the Daleks (1975)

Programme from a production called “A Taste of Honey” that Elisabeth Sladen performed in at Manchester Library Theatre, August 1968

Sarah Jane in K-9 and Company

Elisabeth Sladen with her award from Doctor Who Magazine, where Sarah Jane was voted Best Companion Ever

Elisabeth Sladen with her award from Doctor Who Magazine, where Sarah Jane was voted Best Companion Ever

Elisabeth Sladen signing an autograph for a young fan during filming for “The Masque of Mandragora” (1976)

Sarah Jane, Harry Sullivan, and The Doctor in Terror of the Zygons (1975)

Sarah Jane, Harry Sullivan, and The Doctor in Terror of the Zygons (1975)

Elisabeth Sladen as Sarah Jane Smith for “Terror of the Zygons” (1975)

Elisabeth Sladen as Sarah Jane Smith for “Terror of the Zygons” (1975)

Elisabeth Sladen as Sarah Jane Smith in “The Seeds of Doom” (1976)

Elisabeth Sladen as Sarah Jane Smith in “The Seeds of Doom” (1976)