It’s time to say farewell to the latest incarnation of the world’s most beloved Time Lord: Peter Capaldi has officially announced his departure from Doctor Who at the end of the current series.

Capaldi, who plays the 12th incarnation of the Doctor, joined the series for its eighth season in 2014, but this year’s season 10 will now be his last in the TARDIS, and Capaldi will depart during the 2017 Christmas Special. The news was just confirmed by the BBC on social media this afternoon.

Capaldi is not the only Doctor Who talent departing at the end of the season—showrunner Steven Moffat, who’s been in charge of the series since 2010, will leave with Capaldi at Christmas, replaced by Broadchurch’s Chris Chibnall. The BBC had asked Capaldi to stay on after Moffat’s departure, but clearly, the actor has declined. His full statement has now been released by the BBC, and you can read it below:

One of the greatest privileges of being Doctor Who is to see the world at its best. From our brilliant crew and creative team working for the best broadcaster on the planet, to the viewers and fans whose endless creativity, generosity and inclusiveness points to a brighter future ahead. I can’t thank everyone enough. It’s been cosmic.

The 10th season of Doctor Who is set to air on BBC One and BBC America this April.

[BBC]