Rupert and the Lost Memory is the 34th episode of Rupert (TV series) and the 8th episode of season 3.
In this episode: In a bid to get his hands on The Professor's latest invention, a misguided inventor named Dennis Finch, steals the entire Nutwood file from the Memory Bank, the place where everyone's memories are stored. Meanwhile, Bill is getting stuck in a mirror due to the professor's latest invention.
- Bill Badger
- The Professor
- Dennis Finch
- The Old Wise Goat
- Mr. Bear
- Mrs. Bear
- Edward Trunk
- Cecil Pig
- This is the only episode where a possible mention of a year in which the series takes place is given. At the professor's laboratory, a poster is hanging on the wall saying '''May-June '57''. This indicates that the timeline of the series is taking place between 1950 and 1960, the years that Alfred Bestall drawn most of his Rupert stories.
- This is the only episode where The Professor and the Old, wise goat both appear in and speak to each other.