Blake Lively, Gossip Girl
Blake Lively had the early 2000s in her clutches as Serena van der Woodsen in Gossip Girl. Serena was not the nicest person in the world and would probably be called the villain of the series. Despite the success of this role, Lively felt that it was compromising her own personality and morals.
"People loved it, but it always felt a little personally compromising. You want to be putting a better message out there." She made the decision to not join in on the CW reboot in 2020 due to her changing morals and desire to be a better role model.