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“I won’t go back a third time,” he said onDavid Tennant’s podcast.
But I will need to slow down at some point.
No, that’ll come."
When asked about if he felt he had to find a successor, Russell said: “I suppose.
Last time, we were so lucky last time it was Steven Moffat.
That wasn’t even a day’s work, it was like, ‘Right, off you go!’
So yeah there’s thinking about that, there’s conversations about that, but it’s hard.
It’s a tricky one.
But they’d better exist.”
Millie Gibson is also returning as Ruby Sunday.
Alan Cumming will also be joining the line-up as a guest star, playing the cartoon Mr. Ring-a-Ding.
Doctor Who season 2 arrives on BBC and BBC iPlayer in the UK andDisney Plusinternationally on April 12.
In the meantime, check out our guide to the year’s most excitingupcoming showsto fill out your watchlist.
