<P> Kate Emily Pearson (born August 31, 1980), portrayed by Chrissy Metz (current day), Hannah Zeile (age 15--17), and Mackenzie Hancsicsak (ages 8--10), is Jack and Rebecca's daughter, and Kevin and Randall's sister . She is "Number Two" of the "Big Three", being the second and last of the surviving triplets to be born . </P> <P> Kate is obese and has struggled with issues of self - esteem her entire life, which she greatly attributes to her strained relationship with her mother and the death of her father . Her relationship with her mother led to depression, for which she later took Prozac . She discontinued taking this drug due to the side effect of weight gain . </P> <P> Kate lives in Los Angeles and was her brother, Kevin's, personal assistant . When Kevin decided to move to New York, he fired her in order to allow her to build her own life, apart from him . She is an ardent Pittsburgh Steelers fan and has a routine where she watches the games with her dad's ashes . At nine years old, she had her appendix removed on Christmas Eve . </P> <P> Kate decided to join a weight - loss support group, where she met Toby . Despite saying that she was not going to get involved with a fat person, she fell for Toby . When Toby decided to not continue with his diet, Kate broke up with him and decided to go to Randall's for Thanksgiving . During a turbulent plane ride to New Jersey, Kate had an epiphany and decided to have gastric bypass surgery . After consulting with a doctor, she instead decided to enter a fat camp to attempt to lose the weight without surgery . When Toby surprised Kate by showing up at Randall's house for Christmas, he told her that he can live without pizza and junk food, but that he cannot live without her . Toby collapsed from a heart attack, and was taken to the hospital . </P>

Who does kate work for in this is us