Other Characters/Devils

Zatouji
Voiced by: Hisao Egawa (Japanese), Justin Cook (English)

Zatouji (ザトゥージ Zatōji) is a young Devil-in-training from Madara Town who specializes in familiars. He strives to become a Familiar Master. He acts as a guide to novice Devils who have yet to obtain a familiar. He suggests capturing several of the same type to breed them in order to gain more powerful familiars. In the anime he is depicted as a middle-aged man.

Gentleman Alchemist
Voiced by: Itaru Yamamoto

The Gentleman Alchemist (錬金術師の紳士 Renkinjutsu-shi no Shinshi) is an unnamed Stray Devil who appears in the OVA episode "I'm Harvesting Breasts!" He was captured by the Occult Research Club and interrogated by Grayfia, who revealed to the Occult Research Club that he created the Breast Chimera so that every flat-chested girl in the world would have large breasts.

Breast Chimera
The Breast Chimera is a creation of the Gentleman Alchemist that appears in the OVA episode "I'm Harvesting Breasts!" It is a plant with Dragon-like features, and has the ability to produce breast-like fruits by feeding off of the spiritual energy from women's breasts, specifically the much bigger ones like Rias' and Akeno's. According to Grayfia, the Gentleman Alchemist created the Breast Chimera so that every flat-chested girl in the world would have large breasts by eating its fruit. It was defeated by Rias' boosted Power of Destruction.

Naud Gamigin
Naud Gamigin (ナウド・ガミジン Naudo Gamijin) is a member of the House of Gamigin from the 72 Pillars. An announcer of the Underworld media, he was one of the announcers during the Rating Game between Sairaorg and Rias.

Rudiger Rosenkreutz
Rudiger Rosenkreutz (リュディガー・ローゼンクロイツ Ryudigā Rōzenkuroitsu) is a former human and Magician from the Magician Association, "Rosenkreutzer", that was reincarnated into an Ultimate-Class Devil and is the current 7th ranker in the Rating Games.

Lilitifa Wepal
Lilitifa Wepal (リリティファ・ウェパル Riritifa Weparu)

Gragg Forneus
Gragg Forneus (グラッグ・フォルネウス Guraggu Foruneusu)

Eneely Vassago
Eneely Vassago (エニーレィ・ヴァサーゴ Enīryi Vasāgo) is the elective head and next heiress of the House of Vassago. The House of Vassago originally had good ties with House of Astaroth until their downfall. Due to that, she has a grudge against Rias Gremory and her group.

Iolava Amon
Iolava Amon (イオラヴァ・アモン Iorava Amon) is the second son of the House of Amon, and the fiancé of Eneely Vassago. He looks down on Low-Class Devils, but is also perverted. He created a Cerberus which can use a long-range Dress Break after witnessing the beauty of Issei's Dress Break.