 While the actors receive proper credit for their appearances, they do not have any influence on the storyline, and mainly operates in the background, assisting the other characters.These characters include Detective Angie Miller (portrayed by Dana L. Wilson in the seventh and eighth seasons of the show), technician Karen (portrayed by Mary Alyce Kania during the first four seasons), Detective Jake Simms (portrayed by Francisco Viana in the first, second and seventh seasons), Detective Ramos (portrayed by Pablo Soriano in season two and three) and Detective Weiss (portrayed by Eli Goodman during season two).The first season is largely based upon the first book ("Darkly Dreaming Dexter"), but for the following books and seasons the stories develop separately.