Georgia & David Tennant’s Doctor Who Quiz, a fundraiser for Marie Curie, an organization which supports people with terminal illnesses, will go live online tonight, Tuesday, December 15 at 20:00 GMT.

Among the Tennant’s Doctor Who guests for the quiz are Jodie Whittaker, Matt Smith, Peter Capaldi, Peter Davison, Russel T Davies, John Barrowman, Billie Piper and Catherine Tate.

The online quiz will give participants a chance to interact with Georgia and David Tennant, get shout outs and even challenge them to dares, all from the comfort of their sofas. There will also be prizes and possibly some other surprise celebrity appearances.

You can sign up for the quiz here.