Sheridan Smith was born on June 25, 1981, and grew up in Epworth, a small town in England. Her parents, Colin and Marilyn, were a Country and Western duo called The Daltons, and it was only a matter of time before Sheridan got involved in the performing arts.
As a young child, Sheridan was already dancing at the age of four and singing with her parents from around seven years old. By the time she was 14, she had made her professional debut in the production of Annie, playing the lead role.
Throughout her teenage years, Sheridan went on to star in numerous stage productions, including The Go-Between, Little Red Riding Hood in the 1998 Donmar Warehouse production of Into The Woods, Talullah in National Youth Theatre's production of Bugsy Malone, Doll the Moll in Tin Pan Ali, Mrs. Hardcastle in The Kissing Dance or She Stoops To Conquer, Pendragon and Dorothy in The Wizard Of Oz.
In addition to her stage work, Sheridan also appeared on various television shows, including Blue Peter, Newsround, Children in Need, Olivier Awards, and Theatreland with the NYMT (National Youth Music Theatre),of which she was a member.
Sheridan's first television appearance came in 1999 when she played Matilda in ITV's Dark Ages. Since then, she has made numerous guest appearances on shows such as Wives and Daughters, Anchor Me, Peaches, Hawk, Heartbeat, Doctors, Where the Heart Is, Holby City, Blood Strangers, Fat Friends, The Royal, Mile High, and The Bill.
Sheridan is perhaps best known for her roles in The Royle Family from 1999-2000, where she played Emma, Anthony Royle's (Ralf Little) girlfriend, Two Pints of Lager and a Packet of Crisps in 2001, again playing Ralf's girlfriend, and Rudi in three series of Gavin & Stacey in 2007.
In her personal life, Sheridan lives in London with her flatmate Jason. Her brother Damien is a member of the band Indie Manned.