He was created by John Carmack and designed by Tom Hall for Wolfenstein 3D, described as a large, muscular man with dark blond hair, blue eyes, and a strong jaw.

's grandson, also named William Blazkowicz but primarily using the pseudonym Billy Blaze, became the titular protagonist of the Commander Keen series.

"[6] However, Tom Hall stated more than thirty years after the release of Wolfenstein 3d that he had originally envisioned Blazkowicz's mother to have been Jewish, which Carmack assumed to have been the case.

Blazkowicz has appeared as the protagonist in multiple games, starting with Wolfenstein 3D, where he was tasked with fighting the Nazis, including a battle against Mecha Hitler.

[1] In 2009's Wolfenstein, he returns to fight the resurgent Fourth Reich's[9] use of a highly destructive energy of great power from the parallel world known as the Black Sun dimension,[10] which is again pitting him against Deathshead.

The New Order establishes a new timeline that alters the previously perceived post-war profile, where Captain Blazkowicz suffers a head injury in 1946 that leaves him in a vegetative state for 14 years in a Polish asylum.

In 1960, Blazkowicz awakens from his vegetative state as he is about to be executed, and joins the resistance against the Nazis who have conquered the whole world and who include his old nemesis Wilhelm "Deathshead" Strasse.

[11] This storyline is continued in The New Colossus which directly follows up on the last events of The New Order where Blazkowicz nearly dies of grenade fragmentation injuries in the final battle but promptly gets evacuated by Anya Oliwa and the surviving Kreisau resistance members under the helm of Caroline Becker.

[19] GamesRadar writer Ryan Talionick felt he became more interesting, praising Brian Bloom's voice work for helping making him more believable.

[21] Kotaku writer Stephen Totilo cited hints about his ethnicity, including his knowledge of Hebrew and his mother's recitation of Birkat Hagomel.

[6] Polygon writer Hunter Pauli, while discussing how uncommon Jewish characters in video games were, noted that it was unfortunate that so many were represented through stereotypes, and the only thing distinguishing B.J.

They cited things like their appearance, which was identified as not "Jewish enough," and their Italian-sounding name, though they also mentioned that being half-Jewish caused members of the community to deny their ethnicity.

[23] His role in The New Colossus was discussed, with Rock Paper Shotgun writer Edwin Evans-Thirlwell feeling that his "white heroism risks echoing chauvinism, and how it and toxic social archetypes at large may become instruments of resistance."

's body, citing multiple instances in The New Order where it was viewed as an "Aryan figure," with Alexandra noting that this was also a "model of an ideal video game protagonist."