Donato Porpora

Donato Porpora (ドナート ・ ポルポラ, Donāto Porupora) is a Russian ghoul and a prisoner in the 23rd ward's Ghoul Detention Center. He was once running a Catholic orphanage in Japan. His alias was Priest (神父).

He was also Koutarou Amon's foster father.

Personality
Despite being a ghoul, he has no feelings of fellowship towards other ghouls. He would not mind exposing information that threatens ghouls' safety as long he gets rewards. Donato is cruel and especially likes eating young children.

Raid of Kanou's Lab
Months after Aogiri's attack on the Ghoul Detention Center, he got visited by Amon and Akira Mado for questioning. However, he did not take any of the questions seriously. Before Amon's leave, he advised him to chase "Alice" instead of "White Rabbit".

Koutarou Amon
Even after their fake relationship as father and son ruined with his ghoul identity's exposure, he still blabs meaninglessly about that. He even laughed once at how Amon is easy to understand even though it was about Amon's former partner's death. While Amon's love for him has turned to hatred after he discovered Donato's daily slaughters at that time.