The official website of the anime adaptation of ‘s manga series has announced that voice actors Mizuki and Konishi Katsuyuki will join the cast as Wakatsuki Ibuki and Otogi Reiji.

Character visual of Wakatsuki Ibuki, voiced by Mizuki Nana
Character visual of Otogi Reiji, voiced by Konishi Katsuyuki

About Witch Watch:
This magic is way beyond any imagination!
Morihito Otogi, a high school student with the powers of a demon, lives with his childhood friend Nico, who is training to be a witch, as his familiar! Nico is excited to be reunited with her childhood friend, but Morihito has a mission to protect Nico from a prophesied disaster.
Nico’s magic causes unpredictable troubles, and a boy and girl of marriageable age live together…
A complex and mysterious future begins!
[Rewritten from official website]