Charles, 58, could have joined David Tennant and Aussie pop babe Kylie Minogue in the Christmas special of the BBC1 sci-fi drama.
But show producer Phil Collinson said yesterday: “We recently approached Charles because we had some great ideas for him in the show.
“Unfortunately he politely declined but he did say he was a big fan of the show.”
Charles made a guest appearance in Coronation Street in 2000 to celebrate the ITV soap’s 40th birthday.
Source