Given the task definition and input, reply with output. This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

The main cast was revealed in December 2014 at the 007 Stage at Pinewood Studios. Daniel Craig returned for his fourth appearance as James Bond, while Ralph Fiennes, Naomie Harris and Ben Whishaw reprised their roles as M, Eve Moneypenny and Q respectively, having been established in Skyfall. Rory Kinnear also reprised his role as Bill Tanner in his third appearance in the series.
When were the actors in Spectre announced?