The Tardis transports him to Earth where it lands in small coastal suburb. He emerges from the blue phone-box as Hugh Dennis (of My Hero, Outnumbered and The Now Show fame), and very much bewildered. He roams the sleepy town in his tattered clothing until he bumps into Kathy, a young volunteer at a local care home.
My third Doctor's run would mostly take place on Earth, with the doctor having been taken in by Kathy, who tries to piece together who the mysterious man is. He beguiles her with extraordinary tales of time travel, adventure and other planets... before suddenly forgetting all about them. She initially dismisses his tales as dreams or symptoms of some deep mental trauma... that is until the space pirates arrive on Earth looking for the Doctor, having learned that he is still alive! It is now up to Kathy to save the Doctor - who has settled in nicely to a very laid back life in the care home - from almost certain death. I believe Dennis could play this version of the Doctor with the adequate blend of humour and poignancy, as he flits between a troubled everyman persona and imaginativee, Baron Munchausen-style story-teller.