Terry O’Quinn
Although already established through supporting roles in “Alias” and “The West Wing,” Terry O’Quinn found himself propelled to new heights after his enigmatic portrayal of John Locke in “Lost.” He threw himself so deep into the role that his performance earned him an Emmy Award.
Following the show, he led series like “666 Park Avenue” and “Gang Related.” And from 2020 to 2022, he had a recurring role as Byron LaCroix in “FBI: Most Wanted.”
Next: The South Korean-born actress who went from “Lost” to international success.