Jacqueline Pearce and Michael Keating, two of the stars from the cult BBC TV series which originally aired between 1978 and 1981 took part in a charity edition of the daily game show and managed to get to the final.
Maybe they should have used the know all computer, Orac as sadly, they couldn't come up with any pointless answers.
Not to worry I'm sure the show hosts, Alexander Armstrong and Richard Osman will be visited by some Federation Troopers in the not too distant future.
The episode is available for a short time in the UK on BBC iPlayer . All screen grabs copyright BBC