<Li> Andreas Pietschmann as the Stranger / adult Jonas </Li> <Li> Mark Waschke as Noah </Li> <Li> Lea van Acken as Girl from the future </Li> <Ul> <Li> Nils Brunkhorst as the high school's science teacher in 2019 </Li> <Li> Lena Dörrie as Clara Schrage, a nurse attending to Helge Doppler in 2019 </Li> <Li> Tara Fischer as a friend of Katharina in 1986 </Li> <Li> Leopold Hornung as Torben Wöller, a junior police officer in 2019 </Li> <Li> Tom Jahn as Jürgen Obendorf, Erik Obendorf's father </Li> <Li> Anna König as Edda Heimann, a pathologist in 2019 </Li> <Li> Vico Mücke as Yasin Friese, Elisabeth Doppler's friend in 2019 </Li> <Li> Barbara Philipp as Selma Ahrens, a 1986 caseworker </Li> <Li> Paul Radom as Erik Obendorf, a teenage drug dealer gone missing in 2019 </Li> <Li> Anton Rubtsov as Benni / Bernadette, a transgender prostitute in 2019 </Li> <Li> Anna Schönberg as Nurse Donata, Ines Kahnwald's co-worker in 1986 </Li> <Li> Mieke Schymura as Officer Jankowski, a junior police officer in 2019 </Li> <Li> Lea Willkowsky as Jasmin Trewen, Claudia Tiedemann's secretary in 1986 </Li> </Ul>

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