Robert and Tracy Glazebrook (Paul Raffield and Tracie Bennett) are their "increasingly bizarre and totally dim friends". They are initially Becky's friends, but soon befriend Mark, comforting him on the night Becky leaves him. Tracy, as Tracie Bennett identifies, is a stereotypical Tracy—normally a dysphemism for an intellectually inadequate, usually blonde, female. However, "she's not a bimbo: she's quite clever in her own logic". Bennett jokes that she was quite offended that such a character was named Tracy. Tracy's catchphrase of "you're a silly" was originally Moffat's typographical error, which Bennett faithfully reproduced in her performance. They decided that the amended version worked well for the character.