Mrs. Terrwyn is a human, and local of Nevah's Landing. She runs and opperates a Oleander Diner on Magnolia street. She appears in Blackout and Rob Thurman's online crossover story Timeshare:Cheap & Filthy.
Her features are similar to her brother Llewellyn.
Mrs. Terrwyn is presented as a no-nonsense individual with a strong moral sense of right and wrong. Like her implied brother, she has a soft spot for strays and quickly hires Cal as a waiter to replace a home-wrecking employee.
She answers to either Mrs. Terrwyn or Ma'am.