It only takes watching a few episodes of the Apple TV+ hit “Severance” to see why Tramell Tillman’s character, Seth Milchick, is a fan favorite. There’s an unsettling charisma to the supervisor of Lumon Industries’ Severed Floor that only Tillman can pull off. In this week’s cover story, the actor explains how he brought Milchick to life by studying cults, watching animals, and choosing the right bonsai.
