The posts featured the first clapperboard for the new season, which noted that filming began on 5th December 2022 and that the season's first director would be Dylan Holmes Williams, known for his previous work on M Night Shyamalan's Apple TV+ series Servant.
While we know that Gatwa has already filmed some scenes for the show, expected to air as part of the 60th anniversary specials next year, this will be his Fifteenth Doctor's first full season.
Gibson posted to her social accounts a picture of flowers with a card featuring the now commonly-used sequence of emojis, this time including two hearts and a diamond.
She captioned the post with: "First day... officially a Cardiff resident ;)".
Meanwhile, returning showrunner Russell T Davies also posted his reaction to the start of filming on his Instagram, saying: "FILMING BEGINS on the next season! So many mysteries to come. Who is the X? What is the Y? And what the hell is the spinning Z?!? You’ll find out! On BBC One, BBC iPlayer and Disney+".