As we prepare to say goodbye to Jodie Whittaker and welcome Ncuti Gatwa as the newest Doctor, it’s now been announced that another doctor will be joining the cast of the new season… Doctor Horrible that is!

That’s right, Neil Patrick Harris is set to take to the screen as The Doctor’s greatest foe when Russel T. Davies comes back to see if he can right the ship. Here’s what Davies had to say on the casting:

“It’s my huge honor to open our studio doors for the mighty Neil Patrick Harris… but who, why, what is he playing? You’ll just have to wait. But I promise you, the stuff we’re shooting now is off the scale. Doctor beware.”