Dexter (episode)
Dexter is contacted by his foster sister Debra (Jennifer Carpenter), a vice officer in the Miami Metro Police Department. Dexter, a blood spatter analyst for the department, assists Debra in investigating an apparent serial killer targeting prostitutes. Dexter examines the latest victim and is shocked to find no trace of blood on the dismembered corpse. At the police station, Dexter discusses another murder case being handled by James Doakes (Erik King), a detective who dislikes him. Later, Dexter watches Jamie Jaworski, a murderer who escaped justice due to a faulty warrant, and breaks into his home to find evidence. Once he confirms that Jaworski is guilty, Dexter meets with his girlfriend Rita Bennett (Julie Benz), a former victim of domestic abuse victim; Rita has two young children, Astor and Cody. While on a date with Rita, Dexter finds another murder scene with no traces of blood, this time with the victim's head missing. Dexter theorizes that the killer murders his victims in extreme cold, explaining the absence of blood, and might be using a stolen refrigerated truck. Dexter allows Debra to pitch the theory, but their superior officer, Lt. María LaGuerta (Lauren Vélez), dismisses it.
Dexter Hartman
In late 2013/early 2014, the writers introduced the Carter family and Dexter immediately clashes with the daughter, Nancy Carter (Maddy Hill). Best admitted that of all the female characters, Nancy is one of three that he thought Dexter would work well with, due to the "nature of the characters." Despite Nancy's parents, Mick (Danny Dyer) and Linda (Kellie Bright) seeming very protective of their children, Best believed Dexter's charm would help him win them over. However, he hinted that Mick would be much tougher than Linda. Of a potential relationship with Nancy, Best said, "Only time will tell." However, Best and his costar Maddy Hill attended acting school together, and he helped her get acclimated to her new job. In an interview with "Unreality Primetime", Best said Dexter and Nancy had become "good friends." He continued, "Dexter doesn't like 'ordinary' and [Nancy]'s very much out of the ordinary." According to Best, they share a mutual attraction.