Joseph "Joey" Quinn is a fictional character in the Showtime television series Dexter, portrayed by Desmond Harrington.

Desmond Harrington is an American actor. He made his film debut in 1999, playing Jean d'Aulon in The Messenger: The Story of Joan of Arc. His later credits include Riding in Cars with Boys, The Hole, Ghost Ship, We Were Soldiers, Love Object, Wrong Turn, The Dark Knight Rises (2012), and The Neon Demon (2016).