Me, an 11-year-old boy, even though I already say I'm 12 since my birthday is on 7/27, with a lot of free time, I've known Doctor Who since 2016, because of my father, but I didn't like him THAT MUCH... Now yes (I'm young but I'm not one of those who think that Doctor Who is a new series because of the specials and the Disney+ season) I knew these before Doctor Who:
David Tennant: Harry Potter and the Goblet of Fire, Jessica Jones, Rebels (even if it's just the voice).
Matt Smith: Terminator genesis, Morbius, House of Dragon
Peter Capaldi: The Suicide Squad (2021)
Karen Gillan: Jumanji and Guardians of the galaxy
The one in the photo is the tenth and fourteenth Doctor, between the eleventh and thirteenth Doctor, he left his role as Doctor and traveled through time and participated as Barty Crouch Jr. in Harry Potter's London, as Crowley in Good Omens, as Huyang in Asoka, as the purple man in Jessica Jones and a lot of other things.