Lukas Mattson could be considered Logan Roy's main antagonist in this final season of Succession. Mattson was introduced in the third season as a billionaire tech mogul in the vein of Elon Musk. He's a self-entitled, pompous, conceited up-and-comer who has big visions for Waystar Royco after he merges his company (GoJo) with the Roys' media entity (ATN). Mattson thinks Logan and his children are living in the past and he's looking to advance Waystar into the 2020s with the type of tech bro arrogance we've come to expect from someone of his ilk.