Karl Urban has recently opened up about The Boys' new season and what fans can expect out of it. During an interaction, Karl shared about a mole being on sets who would leak script-level information on the internet. The makers, cast and crew decided to put a stop to it once and for all. And they were successful. For those unaware, Karl Urban plays the now fan-favourite Billy Butcher. Now that the season is inching closer to its much-awaited finale, the actor has opened up about the mole.