Susan I. M. Jameson (born 13 August 1941) is an English actress. She's best known for three roles: portraying Esther Lane in the BBC crime drama series New Tricks between 2003 and 2013, voicing Mrs Wibbsey opposite the Fourth Doctor Tom Baker in a series of Doctor Who audio dramas., and portraying Great Aunt Loretta in the CBeebies show Grandpa in My Pocket. She's married to fellow actor James Bolam, with whom she has appeared in numerous episodes of various television series, including The Likely Lads, New Tricks, Heartbeat (playing three different characters), When The Boat Comes In and Grandpa in My Pocket.