Nabil Shaban is a Jordanian-British actor and writer. He co-founded Graeae—a theatre group which promotes disabled performers. He's best known as the recurring villain Sil in Doctor Who.

Vengeance on Varos is the second serial of the 22nd season of the British science fiction television series Doctor Who, which was first broadcast in two weekly parts on 19 and 26 January 1985.