Dettlaff is a character from the video game series The Witcher, specifically featured in the expansion titled Blood and Wine. He is a higher vampire, known for his exceptional strength, speed, and regenerative abilities. Dettlaff plays a significant role in the storyline, where he is both an antagonist and a complex character with a tragic backstory. In the game, Dettlaff is deeply connected to the character Syanna, who is his love interest. His actions are driven by emotions and a desire to protect her, leading to conflicts with the protagonist, Geralt of Rivia. The narrative explores themes of love, betrayal, and the moral dilemmas faced by its characters.