Marshall David Bryant IV is Tucker's father and the heir to the blender fortune. He is rarely home, leaving Tucker to fend for himself. He is also domineering, and does not like it when Hank or Tucker stand up to him. In one episode, he is revealed to have a substance abuse problem. Marshall attempts to use a rapid detoxification program, which almost kills him, yet he continues to use drugs. Tucker responds by telling his father that what he wants for his birthday present is for his father to get clean, and he is last seen being driven by Tucker to a detox center. In the second season it is revealed that he has been cut off from his money by his father and all the money has been left to Tucker.