You have already appeared in an episode of Doctor Who, as King James I alongside the Thirteenth Doctor (Jodie Whittaker). What made you want to return to the Whoniverse?

As a little boy who grew up with Doctor Who, anytime it's mentioned for me to be in it, the little boy in me jumps. Also, last time I was on the show, it was on location in a muddy forest in Wales in February, and I was wearing a very itchy wig and beard, so doing a voice where I could stay warm and wear what I like was a great boon!

What was it like working with Ncuti Gatwa and Varada Sethu? Did you get to meet them, despite it being a voice role?

It was lovely to work with them both. They are the most giving and playful scene partners. Actually, I've never met either of them, and I only acted to them on a screen from the other side of the world!

If you had to describe the episode in one word or phrase, what would it be?

Art Deco menace.

Do you enjoy playing more menacing and villainous characters like Mr Ring-A-Ding?

It is a truism that villains always get the best line, and are always much more juicy to play. I guess my favourite kind of villains are the ones that are misunderstood while Mr Ring-A-Ding does not have any redeeming qualities, he does start out quite fun and endearing, so there is an arc to him that I enjoyed.

How did you find out about the part? Did Russell reach out to you directly?

Yes, it was an email from Russell via my agent. I've been trying to work with him for years and it always just misses, so I'm really glad this worked out.

(Image: BBC Studios/Bad Wolf)