Winfold Hobbes
From Tardis Wiki, the free Doctor Who reference
Professor Hobbes was a Human who was on holiday with his assistant Dee Dee Blasco. He met the Doctor with a tour of humans that were on there way to see the planet Midnight. (DW: Midnight)
Behind the Scenes
Hobbes' fate is unknown as the episode in question has not yet been broadcast. David Troughton is the son of Second Doctor actor Patrick Troughton.