Guest Stars Anthony Boyle as Sam Jacobson Rudi Dharmalingam as Bob Paine Tuppence Middleton as Linda Timothy Spall as Ed Jacobson Anne Reid as Martine Jenkins Tom Brooke as Tall Man in Light Coat Hayley Squires as Waitress Matthew Jure as Busy Man Ann Akin as Dr. Simpson Rebecca Manley as Mary Jacobson Lauren Carse as Police Officer Naveed Khan as Helpful Pakistani Man Matthew Raymond as Engaged Man Marko Leht as Icelandic Customer Nicole Agada as Woman with Pushchair Rebecca Birch as Engaged Woman Brodie Jouxson as Young Sam