Moseley began her career as a child and adolescent, appearing in Born on the 4th of July, Alan & Naomi, and as a regular on the syndicated teen soap opera Swans Crossing (1992, with Sarah Michelle Gellar) as Callie Walker. She played a teenage kidnapping victim in Welcome to the Dollhouse (1996), but has mostly worked in television since. Her guest credits (often in small parts such as nurses) include Law & Order, Boston Legal, The West Wing, Crossing Jordan, Big Time Rush, Bones, Lie to Me, and Leverage.