Iwao Kuroiwa is a Special Class Ghoul Investigator. Currently, he serves as the vice commander of the 11th Ward Special Countermeasures Unit.

Yukinori Shinohara calls him by the nickname Iwaccho.

Shy Ken Kaneki is thrilled to go on a date with the beautiful Rize. But it turns out that she’s only interested in his body—eating it, that is. When a morally questionable rescue transforms him into the first half-human half-Ghoul hybrid, Ken is drawn into the dark and violent world of Ghouls, which exists alongside our own.
 
(Source: Viz Media)
 
Note: Includes 1 extra chapter.

The second season of Tokyo Ghoul. The ghouls of Anteiku invaded the Aogiri's site in order to rescue Ken Kaneki who is being tortured. Due to provocation, he unleashed greater power enough to defeat Yamori. To become stronger, he decided to join Aogiri and left Anteiku. Ghoul investigators also making their moves by collecting information about the eye-patched ghoul - Ken Kaneki. (Source: Anime News Network)

__Agency:__ Aoni Production (current), 81 Produce (former), Tokyo Actor's Consumer's Cooperative Society (former) 

He took over the ongoing roles of Shigezō Sasaoka and Eiji Kanie after their deaths. In addition, he took over for Shinji Nakae as the narrator of variety show Hey! Spring of Trivia on May 12, 2007.

Two years have passed since the CCG’s raid on Anteiku. Although the atmosphere in Tokyo has changed drastically due to the increased influence of the CCG, ghouls continue to pose a problem as they have begun taking caution, especially the terrorist organization Aogiri Tree, who acknowledge the CCG’s growing threat to their existence.
The creation of a special team, known as the Quinx Squad, may provide the CCG with the push they need to exterminate Tokyo’s unwanted residents. As humans who have undergone surgery in order to make use of the special abilities of ghouls, they participate in operations to eradicate the dangerous creatures. The leader of this group, Haise Sasaki, is a half-ghoul, half-human who has been trained by famed special class investigator, Kishou Arima. However, there’s more to this young man than meets the eye, as unknown memories claw at his mind, slowly reminding him of the person he used to be.

The second cour of Tokyo Ghoul:re. 
Kaneki Ken has finally regained memories of his former self, but this once again leaves him at a crossroads in the war between human and ghoul. After donning a pair of glasses to mirror his mentor Arima, Kaneki's new assignment is to manage the interrogation of Eto, the One-Eyed Owl, after she reveals her ghoul nature in a press conference about the publication of her newest book, which she claims will bridge the gap between the two warring sides. Now interred in Cochlea, Eto eagerly awaits the awakening of the "One-Eyed King", but only Kaneki seems to understand what she's really planning. As Aogiri Tree descends on the facility to rescue their leader, Kaneki turns to one of his oldest friends for help in his new secret mission.
 
(Source: Anime News Network) 
The first episode was distributed online via GYAO! on September 29, 2018. TV broadcast began on October 9, 2018.

Tokyo Ghoul: Void is the second novel set in the Tokyo Ghoul universe. The short stories take place during the six month gap between the Aogiri arc and the Raid of Kanou's Lab arc. 
After the unprecedented raid on the ghoul detention center by the Aogiri Tree organization, the Commission of Counter Ghoul is working to tighten security across the twenty-three wards. However, some ghouls begin to cause unrest in the 8th Ward, continuing the cycle of retaliation between human and ghoul. And what of Kaneki after he left the 20th Ward? This second novel depicts the aftermath six months after the 11th Ward occupation. 
(Source: Tokyo Ghoul Wikia)