She can be made playable by befriending and asking her to move in, or by marrying her. Like all female maids, Debbie's default outfit is the typical "French Maid" outfit with a white apron. She has long blonde hair with a small tiara.
Debbie is mostly interested in Fashion, Travel, Entertainment and Work. When it comes to her skill points, she has maximized the cleaning skill and is on her way towards maximizing the charisma, logic and creativity skills.
Debbie has the same facial structure as Claire Walton. She shares her surname with Michelle Kearney, a Pleasantview sales-clerk, and Todd Kearney, a local townie. However, there is no evidence that she is related to either of them.
Unusually for a pre-made NPC, Debbie has the memory of meeting another NPC, as well as having a pre-set relationship with her. Often going unnoticed, she has 31 personality points, instead of the usual 25.