Thermoman

Thermoman also known by his alias George Sunday later Monday is the husband of Janet, the father of Ollie and Cassie, Arnie's cousin and the main protagonist of the BBC sitcom My Hero. He appears to be an ordinary Irish health shop owner, but is actually an alien humanoid from the planet Ultron and inherited the role of Thermoman from his father Seamus.

In the last series he takes on a new body and goes by the name of George Monday due to losing his previous body in a poker game.

He is played by Ardal O'Hanlon (who also plays Father Dougal McGuire and Robbie) as George Sunday and James Dreyfus as George Monday.

Trivia

 * George is slightly similar to The Doctor as both are human-like aliens and both can change their appearance (George changed his body after losing his previous body in a poker game whilst The Doctor regenerates when he is badly injured or close to death). Both also have family (George has his wife Janet, his son Ollie, daughter Cassie and cousin Arnie whilst The Doctor's known family members are his daughter Jenny (who was born fully grown from skin tissue from The Doctor's hand), granddaughter Susan and his wife River Song.