here is now only one left of the original Unsolved Crime and Open Case Squad: Gerry Standing, portrayed by Dennis Waterman. The rest of the team have changed – even the leader, the ambitious DS Sandra Pullman (Amanda Redman), left in the last series, replaced by DCI Sasha Miller, played by Tamzin Outhwaite. The other squad members are Steve McAndrew (Denis Lawson) and Dan Griffin (Nicholas Lyndhurst).

Overview from themoviedb.org