Hailey Shepherd is a pre-made young adult female Sim who is 11 days away from becoming an adult and lives in Appaloosa Plains with her roommates. She is noted to be the only Sim in Appaloosa Plains to be friends with all the pets in the neighborhood.
Hailey enjoys spending her spare time in the local dog park to meet some loveable puppies and while she seems like a kind person and a Hopeless Romantic, she is much more interested in the dogs themselves rather than staying in a relationship with their owners.
She works in the Medical career as an Organ Donor, without any skills. Hailey is good friends with her two sisters, Jazlyn Parrott and Alani Shepherd. She is enemies with Zac Whipsnake and Benni Hennessey and is best friends with Ditz Riffin.
Strangely, one of Hailey's traits is Hopeless Romantic, meanwhile her lifetime wish is "Heartbreaker". Hopeless Romantics, however, are usually faithful in a relationship. Hailey shares a similar name with Hayley Smith from American Dad, who marries but later divorces Dill Sheppard, and reverts her surname.