First German series produced by Netflix.

Most of the outdoor scenes that took place in the woods were shot at the Fahrtechnikakademie Kallinchen near Berlin. This place is a former military testing area of the German Democratic Republic.

The date November 12th is also a critical date in Back to the Future (1985), being it a date in which many time-traveling decisions and actions collide.

The central motif of the series soundtrack mimics the "Doppler Effect" (a high pitch transitioning to a low pitch), perhaps alluding to the centrality of the Doppler family to the story.

Principal photography started on October 18, 2016 in and around Berlin.

The show was greenlit by Netflix in February 2016. The second season was ordered in December 2017.

The song young Ulrich is listening to is called 'Pleasure to Kill' by German metal band Kreator (from their 1986 second album "Pleasure to kill").

Director Baran bo Odar and producers Max Wiedemann / Quirin Berg previously collaborated on Who Am I (2014).

There are frequent references to the Twix chocolate bar which was sold in Germany under the name Raider (from 1976 to 1991). When Ulrich finds the chocolate bar with the name Raider, it is hinted at that it is from the 1980s.

Mikkel's skeleton costume is a reference to Donnie Darko (2001). Time travel are important plot pieces in both.

The T-Shirt of one of the dead children reads: "Atomkraft, nein danke" which was the slogan of the German anti-nuclear movement in the 1980s.

The black t-shirt worn by Ulrich 1986 in the scene where he has sex with Katherina in the locker room at school (1x05), and later when he is released from jail (1x09), has an edited version of the official logo of the short-lived underground Swedish black metal band Morbid. This band was formed at the end of 1986, and was practically unknown outside the metal underground in Sweden before the release of their first demo in 1987; further, the particular version of the logo on which Ulrich's shirt is based wasn't known before the 1994 re-edition of the demo; therefore, one can safely say that Ulrich's t-shirt is anachronistic.