Idrissa Akuna Elba is an English actor, rapper, singer, and DJ. An alumnus of the National Youth Music Theatre in London, he is known for roles including Stringer Bell in the HBO series The Wire (2002–2004), DCI John Luther in the BBC One series Luther (2010–2019), and Nelson Mandela in the biographical film Mandela: Long Walk to Freedom (2013). For Luther, he received four nominations each for a Golden Globe Award for Best Actor and a Primetime Emmy Award for Outstanding Lead Actor, winning one of the former.

The National Youth Music Theatre (NYMT) is an arts organisation in the United Kingdom providing pre-professional education and musical theatre stage experience for young people. Based in London, it is constituted as a private limited company and as a registered charity. NYMT was founded in 1976 by director and playwright Jeremy James Taylor. Since its inception, it has produced over fifty productions at the Edinburgh Festival Fringe, premièred thirty new musical theatre works, toured several times outside the United Kingdom, and had runs in the West End and on Broadway. Amongst the many alumni of the National Youth Music Theatre who have gone on to careers in the performing arts are actors Idris Elba and Jude Law, both of whom are also patrons of the organisation, along with Jonny Lee Miller, Dylan Strazar, Sheridan Smith, Connie Fisher, and Matt Lucas. Alumni have also included directors such as Jo Davies, and songwriters such as Tara Mcdonald.