Mekaku city actors (メカクシティアクターズ). Mekakushi is the gang's name and Actor probably comes from Headphone actor. The airing time is sheduled to April 12. So happy, I can't wait!
Some of the voice actors have been released on youtube already, check this! For example Miyano Mamoru will be Haruka and Danchou's (Kido) voice totally fits her ! :D