Idris Elba, best known for his role as Stringer Bell in 'The Wire', is joining the cast of the American version of 'The Office'.

Variety reports that Elba's character will be a no-nonsense rival to regional manager Michael Scott (Carell).

Elba will appear in six episodes of the current series.

His film credits include 'RocknRolla', '28 Days Later' and 'The Reaping'.