Guest Stars Tilly Vosburgh as Mary Tyler Jim Carter as Matthew Charlton Matthew Marsh as Geoff Marks Joanna Phillips-Lane as Claire Charlton David Quilter as Dr. George Graves Jo Stone-Fewings as Mark Sutton Lee Whitlock as Graham Angela Barlow as Mrs. Davies Annie Hayes as Mrs. Bristow Angela Shafto as Jeannie Charlton Daniel Coleman as Dean Charlton Fleur Taylor as Shelley Susannah Streeter as Penny Scott Lane as Danny