Doctor Who is about to welcome back a whole host of familiar faces to mark the sci-fi series' 60th anniversary. Three specials, releasing weekly starting November 25, will mark the milestone and see David Tennant and Catherine Tate return in lead roles. Tennant previously played the Tenth Doctor and is now returning as the Fourteenth Doctor, whereas Tate is reprising her role as companion Donna Noble.
Source：https://www.cbr.com/best-doctor-who-character-return-60th-anniversary/
