The Magical Girl and the Evil Lieutenant Used to Be Archenemies Announces Cast Members
A key visual showing the characters has been released as well.

Crunchyroll
On Thursday, the main cast for The Magical Girl and the Evil Lieutenant Used to Be Archenemies anime was revealed.
Yuki Ono will be playing the role of evil lieutenant Mira, and Mai Nakahara will be voicing magical girl Byakuya Mimori.
 Both voice actors are reprising their roles from the manga’s 2015 drama CD.
A key visual showing the characters has been released as well.
The story centers on the unlikely romance between Mira, an official in an evil organization hell-bent on world domination, and Byakuya Mimori, a magical girl who sets out to thwart them.
Source: Comic Natalie