William "B.J." Blazkowicz is a fictional character and the protagonist of the Wolfenstein video game series. He is often depicted as a soldier fighting against the Nazi regime during World War II, known for his bravery and combat skills. Blazkowicz is characterized by his determination to defeat oppressive forces and liberate those under tyranny. Throughout the series, B.J. Blazkowicz battles various enemies, including advanced technology and supernatural beings. His story often explores themes of resistance and heroism, making him an iconic figure in the realm of first-person shooter games. The character has appeared in multiple titles, contributing to the franchise's popularity.