Alan Sugar, Prof. Cox Cameo in Series 7
Sugar and Cox will appear as themselves in the fourth episode of Series 7, The Power of Three.
Cox will be seen on a BBC news broadcast stumped by the invasion of the black cubes.
Sugar, meanwhile, will appear on a broadcast of The Apprentice disappointed with the results of a task involving the cubes.
The Power of Three airs September 22 on BBC1.
