Joseph Quinn is a detective who transferred to the Homicide division after being in narcotics. Quinn takes a liking to Debra Morgan, even giving her a C.I. to help with the Oscar Prado case. Quinn’s past is unknown and even called into question, as Debra is pressured by Internal Affairs agent Yuki Amado to gather evidence against him. Quinn got the Internal Affairs case dropped, and later confessed 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.
Desmond was born in Savannah, Georgia, but moved to his parents’ native Bronx, New York at age 3, where he attended Catholic schools. Desmond found trouble in and out of school throughout his formative years. After high school, he took jobs as a laborer, a landscaper, a cold caller at a brokerage firm, and finally a bartender in Manhattan, where a co-worker invited him to attend an acting class. That changed the course of his life. Over the years, Desmond has appeared in dramas and comedies alike, including LIFE IS HOT IN CRACKTOWN with Shannyn Sossamon and Brandon Routh, WRONG TURN with Eliza Dushku and Emmanuelle Chriqui, GHOST SHIP with Gabriel Byrne, Julianna Margulies and Emily Browning, WE WERE SOLDIERS with Mel Gibson and Greg Kinnear, THREE WAY with Dominic Purcell and Joy Bryant, and RIDING IN CARS WITH BOYS with Drew Barrymore and Steve Zahn.