Sket Dance: Start!
Yocchin voices the main protagonist, Fujisaki Yusuke "Bossun".
Sket Dance started this April 08 '11.
Other casts include:
Sugita Tomokazu as Usui Kazuyoshi "Switch"
Shiraishi Ryouko as Onizuka Hime "Onihime"
Seki Tomokazu as Agata Soujirou
Shimono Hiro as Tsubaki Sasuke
Takamoto Megumi as Unyuu Mimori
Kobayashi Yu as Asahina Kikuno
Nojima Kenji as Shinba Michiru
Nakata Jouji as Chuma-sensei
I seriously love him being able to play as Bossun since he fits him so much. The anime is a good go! I recommend reading the manga as well. It's kind of Gintama-ish since Sket Dance(same name as the club of Bossun)refers to odd jobs/konbini people, school edition.