Emma Slater: Emma Slater. Actress: Mamma Mia!. Emma was born on December 25, 1988 in Sutton Coldfield, West Midlands, England. She grew up in Tamworth, a medieval town in Staffordshire with her twin sister, Kelly. At age four, Emma studied ballet at Novelli Stage School but she did not compete in Latin American and Ballroom until she was ten. When fifteen, Emma appeared in a George Michael music video, which was shot...