8. Warwick Davis

Actor Warwick Davis owes his big break aged 11 to his paternal grandmother Edith, who heard a radio ad 'looking for short people to appear in Return of the Jedi'. Warwick takes a non-judgemental approach as he researches the family line stretching back from Edith, finding humanity and humour in some uncomfortable stories. On his maternal side, Warwick is equally open-minded when he finds out about his three-times-great-grandfather - a postman who lived a double life.