Doctor Who directors Richard Clark and Adam Smith will return to the series in 2011.
Both are listed in the online CV of new Production Designer Michael Pickwoad. They are listed alongside Toby Haynes who is already confirmed as director of the 2010 Christmas Special.
Richard Clark directed Gridlock and The Lazarus Experiment, both originally shown in 2007 as part of the third series since the revival. He has also worked on episodes of Life on Mars, The Whistleblowers and Gunrush.
Adam Smith directed the Eleventh Doctor's first story, The Eleventh Hour as well as the Weeping Angels two-part story The Time of Angels / Flesh and Stone. Away from Doctor Who he has worked on Little Dorrit and Skins.
Production on the next series of Doctor Who is due to continue next week, with a read-through of the Neil Gaiman story.