Sheridan Smith: Sheridan Smith. Actress: Cilla. Sheridan Smith was born on 25 June 1981 and grew up in Epworth. While Sheridan was growing up, her parents, Colin and Marilyn, performed as a Country and Western duo called The Daltons and it wasn't long before Sheridan got into it. She was dancing from the age of 4 and singing with her parents when she was about 7. At 14 she made her professional...