Gregor is described as a friendly and refreshing personality with an odd accent and speech patterns. Despite being carefree and aloof most the the time, many supports delve into his past and give him a more serious vibe. And while he is a mercenary, he does have his own morals.

Gregor has a hint of a russian accent, so be prepared to do that. Here is an example of his voice at 2:38 if you need it: https://www.youtube.com/watch?v=jFQhMBIizWQ&t=256s