Melissa Dorn Gender: Female Status: Arrested. Portrayed by: Stacy Haiduk First Appearance ● NCIS: My Other Left Foot (episode). Last Appearance ● NCIS: My Other Left Foot (episode). List of Appearances Melissa Dorn is the daughter of Dr. Sylvia Chalmers and the half-sister of murdered Marine Private First Class Thomas Dorn. BiographyEdit Pre-SeriesEdit NCIS Season 1Edit Retrieved from "https://ncis.fandom.com/wiki/Melissa_Dorn?oldid=110188" Categories: Americans One-Off NCIS Characters Criminals Civilians Suspects Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.