Teppei Sugo began his career in the military, serving as a highly skilled pilot. During this time, he developed a strong sense of duty and camaraderie, forming deep bonds with his fellow soldiers. However, his life took a tragic turn during an operation at a drone testing site, where a massacre orchestrated by Kirito Kamui resulted in the deaths of many of his comrades. This event became a pivotal moment in Sugo’s life, leaving him deeply traumatized and ultimately identified as a latent criminal by the Sybil System.

After being judged by the system, Sugo was reassigned to the PSB as an Enforcer, first serving in Division 02 before being transferred to Division 01. Despite his latent criminal status, Sugo proved to be a highly capable and reliable team member, using his military training and tactical expertise to support the PSB’s operations. His dedication and professionalism eventually led to his recruitment as a Special Investigator in the Foreign Affairs Operations Department, where he continued to serve with distinction.

Sugo has a lean and muscular build, reflecting his military background and physical training. He has short black hair, sharp features, and a serious expression that underscores his disciplined and stoic nature. His uniform changes depending on his role, ranging from the standard Enforcer attire during his time at the PSB to the more formal attire of a Special Investigator.

Sugo is disciplined, dependable, and deeply committed to his duties. His military background instilled in him a strong sense of loyalty and responsibility, which he carries into every role he undertakes. However, his experiences with loss and trauma have also left him with a somber and introspective side, as he grapples with the consequences of his past actions and the system’s judgment of his character.

Despite his stoicism, Sugo demonstrates compassion and empathy, often going out of his way to protect his colleagues and those under his care. His inner conflict between accepting the Sybil System’s judgment and questioning its morality adds depth to his character, making him a nuanced and relatable figure in the series.

Psycho-Pass 2
Sugo is introduced as an Enforcer in Division 02, where his military expertise and tactical skills make him an invaluable asset. His backstory, particularly the drone massacre orchestrated by Kirito Kamui, becomes a central element of the season’s narrative, shedding light on his trauma and the events that led to his latent criminal status.

Psycho-Pass Movie
In the Psycho-Pass movie, Sugo plays a key role as part of the PSB team sent to the Southeast Asia Union (SEAUn) to investigate and assist Akane Tsunemori. His military background proves instrumental in navigating the politically volatile environment and ensuring the success of the mission.

Psycho-Pass 3
By Psycho-Pass 3, Sugo has transitioned to the role of a Special Investigator within the Foreign Affairs Operations Department. His experience and expertise are called upon in high-stakes international operations, highlighting his growth and continued commitment to justice.

• Akane Tsunemori
  Sugo respects Akane’s leadership and moral clarity, often serving as a dependable ally in her missions. Their professional relationship is built on mutual trust and a shared commitment to their duties.

• Kirito Kamui
  Kamui’s massacre at the drone testing site serves as a haunting memory for Sugo, shaping his character and motivations throughout the series.

• Shinya Kogami
  As fellow individuals shaped by their pasts and their latent criminal status, Sugo and Kogami share a mutual understanding, although their interactions are limited in the series.