Sheridan Smith OBE is an English actress, singer, and television personality. Smith came to prominence after playing a variety of characters on sitcoms such as The Royle Family (1999–2000), Two Pints of Lager and a Packet of Crisps (2001–2009), Gavin & Stacey (2008–2010), and Benidorm (2009). She co-starred as Joey Ross in the drama series Jonathan Creek between 2009 and 2013, and went on to receive acclaim for starring in a succession of television dramas, such as Mrs Biggs (2012), Cilla (2014), The C Word (2015), Black Work (2015), The Moorside (2017), Cleaning Up (2019), and Four Lives (2022). Her film credits include Tower Block (2012), Quartet (2012), The Huntsman: Winter's War (2016), and The Railway Children Return (2022).

The Moorside is a 2017 two-part British television drama. Written by Neil McKay and directed by Paul Whittington, it stars Sheridan Smith, Gemma Whelan, Sian Brooke and Siobhan Finneran and was broadcast on BBC One in two one-hour episodes in February 2017. The drama is based on the 2008 disappearance of 9-year-old Shannon Matthews and the successful search for her by police and volunteers in Dewsbury, West Yorkshire, along with the revelation of mother Karen's involvement in Shannon's kidnapping.