Joseph "Joey" Quinn is a fictional character in the Showtime television series Dexter, portrayed by Desmond Harrington. Quinn is a cop who transferred to the Homicide division after being in narcotics before season three. Appearances Season three Quinn first appears in the season opener, "Our Father", in which he is partnered with Debra Morgan (Jennifer Carpenter). He takes a liking to her, even helping her with a case by giving her one of his confidential informants. Quinn's past is unknown and even called into question, as Debra is pressured by Internal Affairs agent Yuki Amado (Liza Lapira) to report him. He eventually finds out about Amado from Debra, and he claims that her investigation of him is a "personal vendetta". Quinn has the Internal Affairs case dropped after Debra tells him about it. He later confesses to Debra that Amado was once his partner, and that she blames him for a colleague's death from a crystal methamphetamine overdose; Quinn knew about the man's addiction, but tried to offer private help instead of informing his superiors. Season four In season four, Quinn bears a grudge against Dexter Morgan (Michael C. Hall) for botching the blood work for a case he worked on. However, after Dexter sees Quinn taking money from a crime scene, he tries to shut him up by buying him expensive football tickets. Meanwhile, Quinn starts a relationship with Christine Hill (Courtney Ford), a reporter who flirtatiously grills him for information on his cases. After a confidential police lead ends up in one of Hill's articles, Lt. María LaGuerta (Lauren Vélez) warns Quinn to be wary of any reporter who squeezes him for confidential information over pillow talk. Nonetheless, Quinn tells Hill about numerous police reports (supposedly "off the record"), and she uses this information to report that FBI agent Frank Lundy (Keith Carradine) has returned to Miami. Quinn breaks up with Hill after she publishes the article about Lundy, but the two soon get back together. Though more careful about what he says around her, Quinn still defends Hill when Dexter tells her to leave Debra alone, as Hill wanted to do a piece on her about a shooting, she was involved in. Quinn denounces Hill after it is revealed that she is the Trinity Killer's daughter and had been manipulating him to keep her father from being arrested. After Hill commits suicide, however, he is clearly distraught.