Casualty actor George Rainsford who plays Dr Ethan Hardy, will be participating in Celebrity Mastermind alongside Elis James, Montana Brown and Madeline Smith.

George Rainsford as Casualty’s Ethan Hardy ©BBC

They will answer questions on the Welsh Football Team, Desperate Housewives, Kew Gardens and the Back to the Future Trilogy.

Presenter John Humphrys ©BBC

This episode airs tomorrow night (December 29) on BBC One at 6.30pm.