Kate Middleton's uncle Gary Goldsmith has reportedly signed up for Celebrity Big Brother, and has vowed to "talk about everything and anything" on the reality show. Gary, 58, is the younger brother of Carole Middleton - the Princess of Wales' mum. He served as an usher at Carole's wedding to husband Michael, 74, in 1980 and he also attended Kate's wedding to Prince William, 41, in 2011 as a guest.