- Bjarne Mädel - Dealer Buba
- Mark Zuckerberg - Himself (archive footage)
- Isabel Schosnig - Lisa's Mother
- Ulrike Folkerts - Ulrike Sander
- Moritz Führmann - Lisa's father
- Jonathan Frakes - Jonathan Frakes
- Olli Schulz - Uncle Frank
- Milena Dreißig - Bettina Zimmermann
- Florentin Will - Police Chief Inspector Kamper
- Hannah Hoekstra - Mia
- Maren Kroymann - Buba's Mother
- Michael Ostrowski - Abnor
- Langston Uibel - Joseph
- Paula Essam - Jana
- Martina Eitner-Acheampong - Dr. Angela Schleef-Murmann
- Martina Eitner-Acheampong - Dr. med. Angela Schleef-Murmann
- Mathias Junge - Herr Müller von Blumencron
- Markoesa Hamer - Marlene
- Sonja Baum - Frauke Riffert
- Stefanie Reinsperger - Police Officer Klensch
- Jul Kohler - Police Officer Klensch (voice)
- Henning Fischer - Uncle Frank (voice)
- Henning Fischer - Various (voice)
- Nagmeh Alaei - German Teacher
- Karla Trippel - Teacher
- Bastian Reiber - Teacher Mr. Kowinski
- Bastian Reiber - Herr Kowinski
- Nicole Gerdon - Dr. Stocker
- Matthew Friend - Mark Zuckerberg
- Lena Urzendowsky - xKira7
- Lena Urzendowsky - xKira7 (voice)
- Siri Nase - Waitress
- Marc Fischer - History Teacher
- Ron Helbig - Daniel's Buddy
- Merle Wasmuth - Alexa
- Michael Schertenleib - Ilir
- Narsh Alexei Smith - Dr. James Jefferson
- Roland Bonjour - Norbert Frick
- Hinnerk Schönemann - Marco Riffert
- Axel Wandtke - Bankruptcy consultant
- Michael Ransburg - Mr. Windt
- Guido Renner - Prison guard
- Marc Schötteldreier
- Yannick Moll
- Ulla Symanzik
- Ziggy Has Ardeur
Jonathan Frakes hace el papel de Jonathan Frakes.
Maximilian Mundt interpreta a Moritz Zimmermann en la serie.
Danilo Kamperidis interpreta a Lenny Sander en la serie.
Lena Klenke hace el papel de Lisa Novak.
Damian Hardung interpreta a Daniel Riffert en la serie.
Leonie Wesselow hace el papel de Fritzi.
Roland Riebeling hace el papel de Jens Zimmerman.
Jolina Amely Trinks hace el papel de Marie Zimmerman.
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