Viewers with long memories might remember American actor Josh Dallas from the 2008 Doctor Who adventure Silence In The Library/Forest Of The Dead, in which he briefly appears as one of the Library's information Nodes - robots with donated human faces. He may have been little more than a face on the back of a spoon on Doctor Who but Mr Dallas has a much more full-bodied role in Thor as the Asgardian Fandral, one of the Warriors Three. For the sequel Thor: The Dark World, Dallas was too busy with TV series Once Upon A Time to reprise the role and so was replaced by Chuck actor Zachary Levi.
