Season 1: Ulrich's scumbag father, Tronte, is one of the few characters we see at three stages in his life: 1953 (Joshio Marlon), 1986 (Felix Kramer), and 2019 (Walter Kreye). He moves to the town in the '50s with his mother, and later becomes a reporter and carries on an affair with Claudia as his wife suffers the disappearance of their son alone. A real stand-up guy.
Season 2: Blink and you would've missed Tronte this season. We see him briefly in 1953: first pulling down his pants in the woods after a young Claudia asks him to (they later will have an affair), and second, in bed, as his mother Agnes sits next to him reading the newspaper article about old Claudia's death.
Season 3:
- Adam's World: Following the disappearance of his mother in the '80s, Tronte is still living with Claudia's family and is dating her. In the '80s, his wife accuses him of having an affair with Claudia, and it's implied later that he and Jana both believe Regina could be his child. As an old man, Tronte appears in 2020 to kill Regina in the police station, which we later learn was on Claudia's orders because she believes Regina's always meant to die in this loop.
- Eva's World: Like Jana, Tronte doesn't appear in this reality explicitly.
- Origin World: Tronte doesn't exist in the origin world, as his mother Agnes and father, referred to as "The Unknown," can't be born without time travel.
