A mid-credits scene was a scene from an episode of Doctor Who or any of its spin-offs that was present, as the name suggest, in the middle of the end credits. It would usually show up directly after the cast list had scrolled through on the screen.
A mid-credits scene appeared in the series 8 television story Death in Heaven [+]Steven Moffat, Doctor Who series 8 (BBC One, 2014).. It showed the Twelfth Doctor in the aftermaths of having left Clara Oswald behind on Earth and realising Missy had lied about Gallifrey returning to its original position in space and time. The Doctor is sorrowfully sleeping by the TARDIS console as someone knocks on the door. Not answering, he hears a voice calling to him saying "she’s not alright". Still not answering, the figure decides to enter on his own, revealing himself to be Santa Claus, asking him "what do you want for Christmas". The scene ends and reveal another name, Nick Frost.
The series 13 episode Village of the Angels [+]Chris Chibnall and Maxine Alderton, Doctor Who series 13 (BBC One and BBC America, 2021). featured a mid-credits scene in the form of a glitch, both as it started and as it ended. Inston-Vee Vinder appears on the planet Puzano in his pursue of his lover Bel, whom he had been separated from in the chaos of the Flux and having been stationed at Observation Outpost Rose. He meets Namaca Ost Parvess Po who leads him to a holographic message left behind for him by Bel, telling him that they will find eachother soon. Being cut short before she could give the coordinates, he promises to find her and walks off.
The Season 1 preceeding Christmas Special The Church on Ruby Road [+]Russell T Davies, Doctor Who Christmas Special 2023 (BBC One and Disney+, 2023). featured a mid-credits scene showing Ruby Sunday's neighbor Abdul running up to Mrs. Flood, asking her if she saw the blue box disappearing in front of them. Mrs. Flood pretends that she saw nothing, telling him "Merry Christmas" before turning to the camera in a fourth wall breaking fashion, asking the question "Never seen a TARDIS before?".