He is best known internationally for the role of Adolf Hitler in the 2015 film adaptation of the satirical novel Look Who's Back, Ulrich Nielsen in the Netflix series Dark, and Anton Vogel in Fantastic Beasts: The Secrets of Dumbledore.

[2] Masucci played Adolf Hitler in Er ist wieder da (Look Who's Back), adapted from the book of the same name.

Some scenes were unscripted and consisted of filming the reactions of people on the street to Masucci as he traveled the country dressed up as Hitler.

Masucci was surprised to find that many people acted as if they were glad to see the Nazi leader.

Masucci became famous for his 2017 to 2020 role as Ulrich Nielsen on Netflix’s German language time travel show Dark.