Doctor Who‘s 2020 New Year’s Day special, and the beginning of series 12, is less than a week away, but the BBC has been playing one bit of casting very close to its chest… until now.

The Beeb has just revealed that The Inbetweeners and White Gold star James Buckley will be appearing ‘in the upcoming series when it returns on New Year’s Day’, although we don’t think that actually means the New Year’s Day episode, ‘Spyfall, part 1’.

Although details about his character have not been revealed, executive producer Matt Strevens has stated that Buckley will put his “dramatic and comic talents” to use in what he calls an “action-packed” episode, which doesn’t help us narrow down which episode it is.

The actor himself says: “It was surreal to be on such an iconic show and I’m really happy to be part of something so well loved. Hope everyone enjoys it!”

The show has already announced a slew of guest stars for series 12, including Stephen Fry, Breaking Bad actress Laura Fraser, Anjli Mohindra (aka Rani from The Sarah Jane Adventures!), Hustle star Robert Glenister, ER‘s Goran Višnjić and Sir Lenny Henry. Phew!

Doctor Who returns on New Year’s Day on BBC One in the UK and BBC America in the US.