The sci-fi drama's seventh series premiere - which features classic monsters the Daleks - will be screened at the event, which takes place from August 23 to August 25.
Last year, the episode 'Let's Kill Hitler' also premiered at the festival, airing on BBC One the following day.
BBC One is yet to confirm an air date for the new series of Doctor Who, though an autumn transmission is expected.
Who showrunner Steven Moffat will also take place in a Masterclass panel for his other BBC drama Sherlock, alongside co-creator Mark Gatiss and producer Sue Vertue.
Karen Gillan (Amy) and Arthur Darvill (Rory) will exit Doctor Who midway through the seventh series.
New companion Jenna-Louise Coleman will then join the show in the 2012 Christmas special, written by Moffat.