This paper focuses on code-switching between both real and constructed languages in the HBO series Game of Thrones. The aim is to see when code-switching occurs and what functions it has.

For data analysis different code-switching perspectives were considered: a sociolinguistic perspective, a language use and speaker perspective, and a grammatical perspective. As it is difficult to analyse code-switching in a grammatical perspective when you do not speak the other language in the dialogue, the sociolinguistic perspective and the language use and speaker perspective were the perspectives used for the analyses. There is one exception of when a grammatical perspective is mentioned in the third scene.

The results show that the characters code-switch for different reasons, but only between sentences and never within one sentence unless there is a need for a borrowing certain words. The reasons for code-switching are different for the characters, but they are all used as ways to show the viewer something else about the situation or character. Further research is needed about code-switching involving constructed languages usage in TV series.