What is the name of Debra Morgan's boyfriend in season 3?

Anton Briggs was Debra Morgan's boyfriend during season 3 of Dexter. He is a musician and informant who becomes involved with Debra while she is working with the Miami Metro Police Department.

Anton enters the story through Debra's investigation into the Skinner, the serial killer who abducts and tortures victims during the third season. Debra initially encounters Anton in connection with the case, but their professional contact develops into a romantic relationship. Their relationship also highlights Debra's difficulty separating the emotional demands of her personal life from the dangers of police work.

Anton is commonly mixed up with several men connected to Debra or Dexter. James Doakes was Debra's former colleague and superior, Paul Bennett was Rita's abusive ex-husband, and Rudy Cooper was the Ice Truck Killer who posed as Debra's boyfriend in season 1. Among these names, Anton Briggs is the season 3 boyfriend.