New Cast List for Series 6/7

In the new Series 6 trailer, we saw a mysterious voice in the TARDIS, We was unsure on what episode was from, i think i now have the answer to who it is, and what episode;

The Episode: The Doctor's Wife.

The Voice: Biroc (Played By Michael Sheen)

Also some more cast details;

A Young Rory will appear in Series 6/7, he will be played by Ezekiel Wigglesworth, (what a name!)

Also Mels who appears in Series 6 will come in a Young form too, she will be played by Maya Glace-Green.

Also it is rumoured that Katlin Blackwood, (Young Amy) will return for filming of episode 13/8 (which ever one features young rory)