For anyone who can't tell their Tennants from their TARDISes, here's the Euronews Culture guide to everything you need to know about Doctor Who.
Doctor Who' Doctors: Every Actor Who's Played the Role, in Order
Doctor Who returns: A guide to every actor to play the Doctor
How to watch 'Doctor Who' anniversary special 'The Giggle
57 Years Later, A Forgotten Sci-Fi Villain is Making an Unexpected Comeback
Doctor Who' Doctors: Every Actor Who's Played the Role, in Order
Doctor Who returns: A guide to every actor to play the Doctor
Doctor Who' Doctors: Every Actor Who's Played the Role, in Order
Regeneration (Doctor Who) - Wikipedia
Ages of Doctor Who actors on their debuts
Doctor Who actors in order: Who has played the iconic role and who is the current Doctor? – The US Sun
David Tennant talks returning to 'Doctor Who' for 60th anniversary
Doctor Who (TV Series 2005–2023) - IMDb
Second Doctor - Wikipedia