It's no secret that the upcoming Doctor Who 50th anniversary special will see David Tennant returning to his role as the Doctor for the first time since Matt Smith took over the role in 2010, but how weird will it be to see both Tennant and Smith in the same scene? Pretty weird, if this new trailer for the special is any indication.

Ahead of its November 23rd premiere, BBC has released a new teaser for the upcoming 50th anniversary special, which heavily features glimpses of Tennant's return as the tenth Doctor, as well as Billie Piper's return as companion Rose Tyler, and John Hurt's appearance as the Doctor in the "one life" he's tried "very hard to forget." It looks like the Daleks are involved, because it wouldn't be a 50th anniversary special without 'em. 

[via Vulture]