Mark Robinson (Steven Eckholdt) — Rachel's deskmate at Bloomingdale's, who first appears in "The One Where Chandler Can't Remember Which Sister" (Season 3, 1997). Ross is jealous of Mark as he suspects that he and Rachel are having an affair. It is Mark's presence at Rachel's apartment after she fought with Ross in "The One where Ross and Rachel Take a Break" which leads Ross to sleep with Chloe, ultimately ending Ross and Rachel's relationship. In "The One with the Tiny T-Shirt" (Season 3, 1997) Mark asks Rachel on a date and she accepts, however she rejects his advances when she realises she only accepted the offer to get back at Ross. That is the last time Mark is seen until "The One with Princess Consuela" (Season 10, 2004), where he informs Rachel of a job in Paris. Ross fails to recognize him but becomes jealous all over again once reminded.