John Humphrys

Celebrity Mastermind is a British television quiz show broadcast by BBC television. The show is a spin-off of the long running quiz show Mastermind, with the exception that all the contestants are celebrities. As with the main show, John Humphrys is the host and question-master. Magnus Magnusson was quizmaster on the 2003/04 episodes featuring Jonathan Meades as winner.

Mastermind is a British quiz show, well known for its challenging questions, intimidating setting and air of seriousness.