about
Joseph (Joey) Quinn, played by
Desmond Harrington on the TV series,
Dexter, is a detective of the Miami metro Police Department. At this point, not much is known about Quinn besides the fact that he had been under an Internal Affairs investigation at one point. So far Quinn seems like a good guy and the fact that he's good looking doesn't hurt :D
If you want some more information, I pulled this from
Wikipedia, though it contains spoilers!
A likeable, friendly cop who has just transferred to the Homicide division after being in narcotics. Quinn seems to take a liking to Debra, even going as far as to help her by giving a C.I. to help her with the Oscar Prado case. Quinn's past is unknown and even called into question, as Debra Morgan is pressured by Internal Affairs agent Yuki Amado (unknown to Quinn) to report him. He eventually finds out about Yuki from Debra, claiming it to be a "personal vendetta on [her] part". Quinn got the Internal Affairs case dropped after finding out from Debra. He later confesses to Debra that the real source of the Internal Affairs investigation was from the death of a former partner of his and Yuki's who had a crystal meth addiction. Quinn knew about the partner's addiction but tried to offer private help instead of informing his superiors. He is last seen at Dexter's wedding, despite the fact that Debra recommended to Dexter that he should not invite Quinn.
