This research aims to analyze the relation between the director's casting in cinema and the language and narrative of a film with a focus on Nuri Bilge Ceylan's cinema. The alterations in the language and narrative of his films are examined by focusing on the changes in the selection of actors throughout his filmography. This article discusses the relation between his casting choices and the gradual increase of dialogues in his films, his cinema (consisting to some extent of photographic images being dramatized) becoming more talkative, the prolongation of the film durations, the director's centering the humans and their nature with a searcher soul. This research has a qualitative structure, and the case study method was used by examining the behind-the-scenes footage and interviews with the actors. After the first four movies in which he worked with amateur actors -including the short film Cocoon (1994), The Town (1997), Clouds of May (1999), and Distant (2002)- the film he took part as an actor himself, the Climates (2006), is considered as a transition point for his gravitation towards working with professional actors. He then worked with professional actors in his last four movies, Three Monkeys (2008), then Once Upon a Time in Anatolia (2011), Winter Sleep (2014), and The Wild Pear Tree (2018), which are differentiated from the first period films with amateurs actors. The reason for the change in the criteria of the casting process, the difference between amateur or professional casting, and his approach and the changes were analyzed in the light of the theories of Model Acting and System Acting. The effect of these changes was examined through Ceylan's cinematic language and the study aims to discuss how actor choices could affect the narrative assets of the film.