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Professor Winfold Hobbes was a human scientist who went on holiday (for the thirteenth time) with his assistant Dee Dee Blasco. He met the Tenth Doctor on a tour by humans on the planet Midnight. On the way to the Sapphire Waterfall, he showed slides of his research and scolded Dee Dee on her study of the Lost Moon of Poosh. As the Midnight entity created chaos among the passengers, he asked the Doctor who he was and insulted Dee Dee, calling her "average at best". Hobbes was left unscathed by the events on the Crusader 50 shuttle bus, despite remaining obdurate that nothing could go wrong.