Sue Ann and Mitch Merlotte are Sam Merlotte's adoptive parents who raised Sam until shortly after he shape shifted for the first time. Sam came home one day and the Merlottes had moved out of the house, leaving his room untouched.
When Sam left Bon Temps, Louisiana to find his real parents, he stopped by his his adoptive parents house for more information. Sue Ann didn't want to give Sam the information, because she had promised to Melinda Mickens that she wouldn't. Mitch, who was sick in bed, wrote down his parents names so that way Sam could find them. ("Beyond Here Lies Nothin'")