Doctor Who' trailer: Neil Patrick Harris is David Tennant's enemy

With the release of the new 'Doctor Who' trailer — starring Neil Patrick Harris as David Tennant's enemy — showrunner Russell T Davies promises plenty of upcoming surprises.

What to Expect: 'Doctor Who' 60th Anniversary Specials

Neil Patrick Harris 'will play villain The Toymaker' in Doctor Who's 60th anniversary special

Watch: 'Doctor Who' 60th Anniversary Special Teaser With David Tennant

Doctor Who 60th anniversary special: News, cast and release date

Doctor Who: Is Neil Patrick Harris' 60th Anniversary Role Really the Doctor's 'Greatest Enemy'?

Doctor Who's new teaser trailer features David Tennant's return, villainous Neil Patrick Harris and a clueless Ncuti Gatwa; watch video - Bollywood Hungama

Doctor Who: Neil Patrick Harris in absolutely terrifying transformation for Bristol filming

How to Watch and Stream the 'Doctor Who' 60th Anniversary Specials Online

Doctor Who 60th Anniversary Trailer: David Tennant Battles Neil Patrick Harris

Doctor Who Theory Connects The Toymaker To Divisive David Tennant Episode Villain

David Tennant spotted filming Doctor Who in Bristol

Neil Patrick Harris cast in Doctor Who 60th special - Dexerto

Doctor Who' 60th Anniversary Specials Trailer w/ Neil Patrick Harris