Amy Green (Christina Applegate): one of Rachel's two sisters, who first appears in "The One with Rachel's Other Sister" (airdate November 21, 2002; Season 9, No. 8). She arrives at Monica and Chandler's for Thanksgiving dinner, where she is annoyed that she would not get custody of Emma if Rachel and Ross died. A boorish, hedonistic, brazen, dimwitted, amoral, materialistic and utterly unlikeable bully who could not care less about other people's feelings, she greatly irritates the friends with her cruelly honest opinions of them and selfish, self-absorbed attitude; though seems a little afraid of Monica, convinced that she is crazy (after witnessing Monica's bizarre rules when it comes to eating off the china plates she and Chandler received as a wedding present). When Rachel and Amy later have a fight after the former feels the latter has insulted Emma, which results in them accidentally breaking one of Monica's plates (causing her to nearly pass out), Chandler firmly tells both of them off as a father would do, and demands that Amy apologise for ruining Thanksgiving, for which she does. He then later hints to her that their fight was "a major turn-on". Rachel also makes up with Amy after offering to let her use her Ralph Lauren employee discount.