Kim Marshall (formerly Diamond) is a pre-made Sim, living in Appaloosa Plains. She married Felipe Marshall after divorcing Barrington Diamond, and since then they have been accumulating pets, Oopsie-Daisy, BaBa and GooGoo in their large house, to replace Kim's desperate need to have kids. She cares for her pets as if they were her children; however her biological clock continues and she hasn't yet became pregnant, which will lead her to continuously bring new pets to her life. She has already has a complete nursery, also dedicated to her pets. It is implied that either Kim, Felipe or both of them are infertile.
She works in the Business career at level 3 with a slightly negative performance. She has two points in the gardening skill, 4 in cooking and logic. Kim is best friends forever with her puppy BaBa, kitten Oopsie-Daisy and foal, GooGoo; good friends with Chantrelle and Cornell Riffin; friends with Calvin Riffin; acquaintances with her boss, Benjamin Schmidt; disliked by Hetty Lionheart and her ex-husband, Barrington.