Vincent "Vince" Masuka is the Miami Metro Police lead forensic investigator and works alongside Dexter in the lab and in crime scenes. He often cracks innuendo to the rest of the team, and harbors decidedly unrequited feelings for Debra. He is portrayed as unusually perverted, and is familiar with many sexual topics. It was because of this Frank Lundy preferred to have Dexter work with him, stating "If I hear one more titty joke, I'm afraid I'll punch him in the face." However, he has been able to tone it down when the situation calls for it, like when Angel was in the hospital, as well as calming down Debra now that Lundy was back. Detective Joey Quinn even confronted him about that in stating that is the reason no one likes to be around him, only for Vince to harshly brush him off. However, he seems to accept Joey's explanation when no one came to his speech on his newly published work, cleaning up his act and dressing formally (which freaks out Debra) until he returns to his old self at the end of the episode. In the books, Dexter feels a kinship with him as, like him, he hides who he really is. As in the novel, he sets up Dexter's Bachelor Party and kidnaps him to get him there (where, in the belief that he had been kidnapped by the Skinner, Dexter slugged Vince in the eye just as he opened the car trunk). However, he falls for the female Party Planner and has been suggested they are still in a relationship. He is also shown to be greatly distraught seeing Rita kiss another man, leading him to try to tell Dexter. In the novels, he is Dexter's best friend, or rather the closest Dexter could have to a friend. Vince feels the same for him, as in Dearly Devoted Dexter he threw a large bachelor party for Dexter within a few hours of finding out his engagement and in Dexter in the Dark took his role as best man so seriously that he was often nervous and called in favors to hire Manny Borque, a famous caterer, for Dexter's wedding.