Pearl Mackie Announced as New Companion in Doctor Who

British actor Pearl Mackie has been named the new companion to the Doctor in the 10th season of Doctor Who, the long-running show announced on Saturday.

Mackie—who is currently performing in the National Theatre’s production of The Curious Incident of the Dog in the Night Time in London—will appear as a new character, Bill, alongside Peter Capaldi, who stars as the Doctor.

“It’s such an extraordinary British institution, I couldn’t be prouder to call the Tardis my home,” said Mackie, 28, the BBC reported.

Read more: Doctor…Who?: A Beginner’s Guide to Doctor Who

The show released a clip from the new season, set to premiere in 2017, showing Mackie and Capaldi running from “the deadliest alien war machine ever devised.”

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Write to Katie Reilly at Katie.Reilly@time.com.