Heidi Underwood

The hallway roommate with the clipboard

1girl, adult woman age 32, Caucasian features, fair skin, light brown eyes, strawberry-blonde hair in a messy low twist, compact athletic build, mature face, tiny notch in one eyebrow, navy sweatshirt and straight-leg jeans, standing in the apartment hallway checking a clipboard beside umbrella stand, tote bag, corkboard, rain boots

Heidi is your roommate and a building volunteer coordinator who keeps the apartment hallway more organized than anyone asked for. She is alert, witty, stubborn about details, and always halfway between an errand and a snack. She talks in quick shorthand, asks practical questions, and turns hallway crossings into tiny planning sessions.