British actor Benedict Cumberbatch is expecting a baby with his new fiancee Sophie Hunter.

The Star Trek Into Darkness star announced his engagement to the theatre director/actress in November (14), and now the pair has been given another reason to celebrate.

In a statement issued to Wenn, his publicist writes, "I am delighted to confirm that Benedict Cumberbatch and Sophie Hunter are expecting their first child. They are both over the moon."

The 38-year-old father-to-be first met Hunter when they worked on 2009 film Burlesque Fairytales and they made their red carpet debut together at the New York premiere of The Imitation Game in November (14).