Charles Bartholomew Bass is a fictional character in the novel and television series Gossip Girl. In the TV series, he is portrayed by English actor Ed Westwick. Although he is a secondary antagonist in the original book series, the TV series elevates him to an antiheroic main character, and the male lead of the show, where he is noted for his financial ambition, hedonism and personal style.Since they were children, Chuck has been best friends with Nate Archibald, Serena van der Woodsen and Blair Waldorf, who is his main romantic interest throughout the series. In the TV series, he is also step-brother to Serena and Eric van der Woodsen.