Sherlock new teaser trailer released

A teaser trailer for the third season of Sherlock has been revealed

The 26 second clip was aired August 2nd on BBC 1 after a repeat of season 2 finale 'The Reichenbach Fall'

Other characters in the trailer apart from Cumberbatch's Sherlock include Una Stubb's Mrs Hudson, Rupert Graves as DI Lestrade, Louise Brealey as Molly Hooper and Mark Gattiss as Mycroft Holmes.

Each appear to look behind their back as a shadowy Sherlock lurks behind them. The trailer also shows a newly mustached Watson dining in a restaurant. The third series of Sherlock is expected to air late this year or early next year