Pearl Mackie is stepping into the TARDIS as the Doctor’s newest companion.

The British actress has been cast as Peter Capaldi’s new Doctor Who co-star following Jenna Coleman’s exit last year. Mackie’s character is named Bill.

The BBC announced the casting live on air during half time of the FA Cup semi-final today. Along with the announcement came a 2-minute scene of the Doctor and Bill on screen together — running from the Daleks, naturally. Watch “Friend from the Future” below.

“I’m incredibly excited to be joining the Doctor Who family,” Mackie said. “It’s such an extraordinary British institution, I couldn’t be prouder to call the TARDIS my home! Peter Capaldi is such a brilliant actor, and his Doctor is such a wacky and wonderful character, I can’t wait to see what adventures are in store for him and Bill throughout time and space.

“Reading the script at the audition I thought Bill was wicked. Fantastically written, cool, strong, sharp, a little bit vulnerable with a bit of geekiness thrown in — I can’t wait to bring her to life, and to see how she develops through the series.”

“It is a genuine delight to welcome Pearl Mackie to Doctor Who,” Capaldi said. “A fine, fine actress with a wonderful zest and charm, she’s a refreshing addition to the TARDIS and will bring a universe of exciting new possibilities to the Doctor’s adventures.”

Doctor Who returns Christmas Day with the newest holiday special. Season Ten is expected to bow next spring.