Case File[1], marketed by BBC America as Yaz's Case File[2] is an ongoing series of webcasts released as a tie-in with series 11 of Doctor Who in 2018. They profile various monsters and alien races featured on the series, providing information about the villain featured in the episode, as well as an overall episode summary. They are read by Mandip Gill in-character as Yasmin Khan.
Episodes
Note
Oddly, two of the main financiers of Series 11 chose to market the same show in slightly different ways. The official Doctor Who website, run by the BBC, called it simply Case Files and made it available globally. By contrast, the BBC America website called it Yaz's Case File, and geo-locked it.