According to the BBC, Doctor Who star Elisabeth Sladen, who was also in spin-off series The Sarah Jane Adventures, has died aged 63.
Sladen appeared as Doctor Who assistant Sarah Jane Smith in the BBC television sci-fi series between 1973 and 1976, opposite Jon Pertwee and Tom Baker.
The Liverpool-born actress appeared in four series from 2007 of The Sarah Jane Adventures on children's channel CBBC.
Sladen had been battling cancer for some time and leaves actor husband Brian Miller and daughter Sadie.
CBR has a nice tribute with several videos.
Sarah Jane was probably the best Companion the Doctor ever had: smart, funny and likable.
Elisabeth Sladen will be missed.
And I wonder what K-9 will do now....