Hideyoshi Nagachika

Hideyoshi Nagachika (永近 英良, Nagachika Hideyoshi), also known as Hide (ヒデ), is a normal human and the best friend of Ken Kaneki. He attended Kamii University as a freshman and, later, sophomore. While there, he was studying Foreign Language Studies — majoring in English[1] — at the Department of International Studies.[4] At a certain point, he started working part-time at the CCG, and soon became an investigation assistant helping both Koutarou Amon and Akira Mado. He disappeared during the Owl Suppression Operation, and later resurfaced under the identity of Scarecrow (スケアクロウ, Sukeakurō). With the disguise of a low-rated Ghoul, he lingered on the fringes of several major operations and meddled without revealing his true nature or goals.

Koutarou Amon

Koutarou Amon (亜門 鋼太朗, Amon Kōtarō) is a former First Class Ghoul Investigator. He was Kureo Mado's last partner and his last partner was Akira Mado. He was subsequently declared dead by the CCG, though his body was never recovered,[6] and was posthumously promoted to Special Class for his distinguished service.[7] During the Rushima Landing Operation, he reappeared alive as an artificial one-eyed ghoul.

Rize Kamishiro

Rize Kamishiro (神代 利世, Kamishiro Rize) was a ghoul and the foster daughter of Matasaka Kamishiro. Born into the Washuu Clan, Rize was the illegitimate daughter of former CCG chairman Tsuneyoshi Washuu, where, as a child, she escaped from her clan and organization V. She was known under her nickname Binge Eater (大喰い Ōkui, "Binge Eater" or "Gluttony", literally "Big Eater"). Due to her eating habits, Rize was a threat to most ghouls in various wards in Tokyo before her death in the Steel Beam Incident where her kakuhou was used in the kakuhou transplant surgery to transform Ken Kaneki into a one-eyed ghoul. Rize later was discovered alive and captured by Dr. Akihiro Kanou where her kakuhou was farmed to transform Kurona and Nashiro Yasuhisa, and Souta Washuu-Furuta into one-eyed ghouls. Eventually, she was used as the host for the body of Dragon (竜, Ryū), indirectly responsible for the ghoulification of Tokyo, before she was finally put out of her misery at the hands of Ken Kaneki.

Hinami Fueguchi

Hinami Fueguchi (笛口 雛実, Fueguchi Hinami) is a ghoul whose parents, Asaki and Ryouko Fueguchi, were killed by ghoul investigators. After the event she began to share strong pseudo-sibling relationships with both Ken Kaneki and Touka Kirishima. The CCG held insufficient information about Hinami, and therefore failed in eliminating her. She was known as subject Number 745 or Daughter in their files. Later, she joined Kaneki's group.

Yukinori Shinohara

Yukinori Shinohara (篠原 幸紀, Shinohara Yukinori) is a Special Class Ghoul Investigator and an Investigation Commander in Division I. He was assigned to the 20th ward and responsible for the investigation of the Binge Eater. In the past, he acted as Koutarou Amon's instructor at the CCG Academy.[4] His last partner was Juuzou Suzuya. He was Kureo Mado's first partner.

Juuzou Suzuya

Juuzou Suzuya (鈴屋 什造, Suzuya Jūzō) is a Special Class Ghoul Investigator. In the past, he went by the name Rei Suzuya (鈴屋 玲, Suzuya Rei). He was first partnered with Yukinori Shinohara, and is now currently the leader of Suzuya Squad. He was first assigned to the 20th ward and was responsible for the investigation of the Binge Eater. Later, he was assigned to the 13th ward and was investigating the ghoul Nutcracker, along with his squad

Seidou Takizawa

Seidou Takizawa (滝澤 政道,bobo jiggle) is a former Rank 2 Ghoul Investigator. A classmate of Akira Mado at the Academy, he was partnered with Kousuke Houji and assigned to the 20th ward to investigate the Gourmet. Though a great admirer of outstanding investigators such as Koutarou Amon and Kishou Arima, he also suffers from a major inferiority complex that brought him into conflict with his peers. At the end of the Owl Suppression Operation, he faced Tatara together with Koutarou Amon and was subsequently reported dead by the CCG.