Bartholomew "Bart" Bass

Chuck's billionaire father, founder of Bass Industries and was married to Lily van der Woodsen. His family lived at the New York Palace Hotel, which he owned. His money was self-made, as opposed to inherited like most Upper East Side families. He was controlling with his family, ruthless in business and demonstrated little to no interest in Chuck's life. In season 2, with Dan's help, he and Chuck try to mend their relationship, but he suddenly dies in a limo accident.