Actor Idris Elba is set to appear on six episodes of the NBC series, “The Office,” reports Variety. Elba is cast as a new rival to star Steve Carell’s character. Elba is best known for his roles on HBO series, “The Wire.” Later this year, Elba will star with Beyonce in the movie thriller, “Obsessed.” Click here to see the movie trailer from an earlier Suite 411 post.