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.

David Tennant Dances With Neil Patrick Harris In Brand New Trailer for ' Doctor Who' 60th Anniversary Special, catherine tate, David Tennant, Doctor Who, Neil Patrick Harris, Television, Yasmin Finney

Neil Patrick Harris to Star in 60th Anniversary as “the Greatest Enemy the Doctor has Ever Faced” – The Doctor Who Companion

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

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

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

He'd Never Heard Of It In His Life': Doctor Who's Russell T. Davies Recounts Casting Neil Patrick Harris For The 60th Anniversary

Neil Patrick Harris announced as latest addition to Doctor Who 60th Anniversary special cast

Doctor Who' Trailer: Can David Tennant's Doctor Save Donna Again? Plus Neil Patrick Harris Confirmed as Toymaker (VIDEO)

Doctor Who trailer finally confirms which classic villain David Tennant's Doctor will face

Doctor Who: 60th Anniversary - Which Villain Does Neil Patrick Harris Play?