Even though she has red hair, her natural hair color is actually black. Like all townies in The Sims 2, Holly's skills, career and relationships with other townies are usually randomized at the start of the game. She has the same facial structure as Carla McCullough from Veronaville. Holly has pre-set interests, unlike most Strangetown townies.
Unusually, Holly has a general memory of Knut Futa's death, even though they have no relation to one another. This oddity happens with the townie Blair Mace.