Sarah Jane's Alien Files was a six-episode miniseries that acted as a supplemental to The Sarah Jane Adventures. It was created for The BBC's children's channel, CBBC, by Russell T Davies.
Sarah Jane Smith (Elisabeth Sladen), Luke Smith (Tommy Knight), Clyde Langer (Daniel Anthony) and Rani Chandra (Anjli Mohindra) upload data about the aliens they have encountered to Mr Smith (Alexander Armstrong), Sarah Jane's supercomputer. They discuss the histories and details of the various species.
- The show is an 'in-universe' supplemental series to The Sarah Jane Adventures and features the same characters and cast.