Emiel Regis Rohellec Terzieff-Godefroy, also known as Regis, is a higher vampire in the Witcher series. Unlike other vampires, higher vampires are physically similar to humans and do not need to drink blood to survive. However, drinking blood can increase their strength. They also possess unique abilities such as turning invisible, bewitching with their gaze, and transforming into a bat. They can even fly, but this ability is rarely used.