The official Twitter for Shuumatsu Nani Shitemasu ka? Isogashii desu ka? Sukutte Moratte Ii desu ka? has announced the cast members for its upcoming TV anime adaptation by studio Satelight. The anime is expected to broadcast in Spring 2017.

Vilem Cumesh: Ryouhei Arai (Battle Spirits: Burning Soul)
Kutori Nota Seniolis: Azusa Tadokoro (Masamune-kun no Revenge)
Icea Mize Valgalis: Machico (Sansha Sanyou)
Neflen Luku Insania: Akari Uehara (Nyanko Days)
Larntolk Itsuri Historia: Kazusa Araname (Robot Girls Z)
Nofuto Kay Desperatio: Inori Minase (Gabriel DropOut)
Tiat: Tomomi Mizuma (Aikatsu!)
Panibal: Yurika Kubo (Chou Yuu Sekai: Being the Reality)
Lakish: Manaka Iwami
Coron: Hina Kino (Masou Gakuen HxH)
Armita: Akane Kohinata (Nurse Witch Komugi-chan R)
Niglart: Kikuko Inoue (Ranma ½)
Glick Gleicluck: Shigeru Chiba (Time Bokan 24)
Limeskin: Juurouta Kosugi (JoJo no Kimyou na Bouken)
Armania Dufna: Satomi Sato (Gochuumon wa Usagi Desu ka?)
Firacolribia Drio: Honoka Inoue (Danganronpa 3: The End of Kibougamine Gakuen - Zetsubou-hen)
Lila Asplay: Rina Satou (Amagami SS)
Swon Kandel: Mugito (Binan Koukou Chikyuu Bouei-bu LOVE!)

Opening theme performance: "DEAREST DROP" by Azusa Tadokoro
Ending theme performance: "From" by TRUE

Source: Ota☆Suke