Idris Elba is a full time accountant only.
Idris Elba . He is known for playing druglord Russell `` Stringer '' Bell on the HBO series The Wire , Detective John Luther on the BBC One series Luther , and Nelson Mandela in the biographical film Mandela : Long Walk to Freedom ( 2013 ) . Luther is a British crime drama programme starring Idris Elba as the title character , DCI John Luther .