Because of his interest in the theatre, Nay responded to a newspaper advertisement looking for actors in 2004 and successfully auditioned for a part in the German children's series '
on German TV station NDR. In the first two seasons of the television series, Nay portrayed character Otti Sörensen while using the stage name Jonas Friedebom'''. In the following years, he played minor roles in several television productions on German television stations
ARD and
ZDF. After finishing school, Nay took the lead role in the TV film ''
, a drama about a teenage boy bullied by his classmates, who shared a video of him masturbating. The production was awarded Best TV film at the 2011 German Television Awards. Nay himself received a German Television Award, as well as a 2012 Award, for his role. This work was followed by other leading roles in TV films. In 2012, Nay had a role as Hamburg investigator Cenk Batu in Tatort:
, about a disturbed serial killer who is killed by his mother in the heat of the moment. For his role as the son of a schizophrenic in the 2013 film '', he was awarded the
Bavarian Film Award in 2013 as "Best Newcomer." Nay opted for ''
, rather than military service, working with people with disabilities; he went on to look at film scoring. in which he sang, played guitar and piano, and wrote the lyrics. The band worked on music for the Stephan Rick film The Good Neighbour'' in January 2013. The result was the forming of the new band Northern Lights. In 2015, Nay starred as Martin Rauch, an
East German spy, in the
Cold War thriller
Deutschland 83, the first German-language TV series shown on American television, and later its 2018 and 2020 sequels,
Deutschland 86 and Deutschland 89. He reached a certain level of international recognition for this role being interviewed by multiple media outlets in the
United Kingdom and
United States. Nay sings and plays the keyboard for the band Pudeldame. In February 2021, it was announced that Nay had been cast alongside actor
Elyas M'Barek in the film
1000 Zeilen (1000 Lines), a thriller based on the book
Tausend Zeilen Lüge. Das System Relotius und der deutsche Journalismus by
Juan Moreno about the 2018
Fake news scandal which involved former journalist
Claas Relotius from
Der Spiegel. == Filmography ==