Vincent Hauser is Duke's younger brother.
When Duke returns fearful for his family due to threats from Cobra, Vincent warns Duke to stay away from him and their parents. Unlike his mother and father who believe Duke is innocent, Vincent turns him and the Joes over to Flint when they come over for a home-cooked meal. Duke defends his actions due to his concern for the family. Later, Vincent starts to believe Duke when it is revealed that the Joe's did not blow up the Cobra facility but that it was wired to self-destruct.
- Given his first name and his relation to Duke, Vincent is most likely the Renegades incarnation of Falcon.