Our inaugural celebration of the most powerful people in unscripted television. Photo-Illustration: Vulture; Photo: Courtesy of the subject Stephen Lambert is not being cocky when he says he knew The Traitors was going to be a hit before the first episode aired. The veteran British producer behind the Peacock and BBC versions of the series says his 40-plus years of making television simply made him confident the format would, as he puts it, “pop” with audiences on both sides of the Atlantic. “