Coronation Street is a British soap opera first broadcast on 9 December 1960. The following is a list of characters introduced in 2021, by order of first appearance. All characters are introduced by series producer Iain MacLeod. The first character to be introduced is Lucas Kempton (Glen Wallace) in January, as a love interest of Carla Connor (Alison King). Teenager Jacob Hay (Jack James Ryan) arrives in February, followed by Ronnie Bailey (Vinta Morgan), the brother of Ed (Trevor Michael Georges), later that month. In March, drug lord Harvey Gaskell (Will Mellor) made his first appearance. Stefan Brent (Paul Opacic) was introduced in April as the father of Corey Brent (Maximus Evans). Curtis Delamere (Sam Retford) then made his first appearance in May as a love interest for Emma Brooker (Alexandra Mardell). Mia (Madeline Edmondson) begins appearing in September as an inmate that befriends Kelly Neelan (Millie Gibson) in prison, as well as Leo Thompkins (Joe Frost), a construction worker hired by the Platt family. Rebecca Ryan then joined the cast in December as Lydia Chambers. Additionally, multiple other characters appear throughout the year.