Susan Walker (Sarah Alexander) - Best friend to Sally, girlfriend/fiancée to Steve and ex-girlfriend of Patrick, Susan is one of Jeff's co-workers. Susan is usually very sensible and organised, a fact often resented by her friends Sally and Jane. Susan can be very insecure and often takes this out on Steve. When angry she will generally say "apparently," a habit first noted in the first series episode "Inferno," and henceforth mentioned throughout the rest of the series by other characters. In the series 1 episode "Size Matters" it is implied that Susan views Angus Deayton in the same way that Steve views Mariella Frostrup, even keeping two pictures of him hidden in her bedroom. Steve and Susan's various arguments and differences of opinion make up a majority of the comic exchanges between them. Susan is a successful career woman, speaks French fluently, and takes her work life very seriously. Whilst Susan's job is never directly referred to, she works alongside Jeff, an accountant, and she reveals she has a degree in Economics. In series 4, she has a baby boy with Steve.