Kadokawa's Dengeki G'S Magazine website announced the main staff, cast, key visual (pictured below) and premiere season on Tuesday for the TV anime adaptation of Hirohiko Araki's JoJo's Bizarre Adventure Part 4: Diamond Is Unbreakable (JoJo no Kimyō na Bōken: Diamond wa Kudakenai) manga. The anime will premiere in April 2016.

The anime will star:

Yuuki Ono as Jōsuke Higashikata

Yuuki Kaji as Kōichi Hirose

Wataru Takagi as Okuyasu Nijimura

Takahiro Sakurai as Rohan Kishibe

Daisuke Ono as Jōtarō Kūjō

Takagi is reprising his role from the JoJo's Bizarre Adventure: Eyes of Heaven video game. In the game, Hiroshi Kamiya voices Rohan Kishibe, Wataru Hatano voices Jōsuke Higashikata, and Romi Park voices Kōichi Hirose.

The staff includes:

Director: Naokatsu Tsuda

Series Director: Toshiyuki Kato

Chief Director: Yuuta Takamura

Series Composition: Yasuko Kobayashi Character Design: Terumi Nishii

Stand Design/Action Animation Director: Kenta Mimuro

Sub-Character Design: Shun'ichi Ishimoto

Prop Design: Yukitoshi Hōtani

Art Setting: Kaoru Aoki, Junko Nagasawa

Color Key: Yuko Sato

Art Director: Shunichiro Yoshihara

Director of Photography: Kazuhiro Yamada

Editing: Kiyoshi Hirose

Sound Director: Yoshikazu Iwanami

Music: Yuugo Kanno

Animation Production: David Production

Warner Brothers Home Entertainment will reveal the anime's first promotional video at its booth at this year's Jump Festa event on December 19-20. The staff will also host a stage event on December 20 from 2:00-2:30 p.m. featuring Yuuki Kaji, Yuuki Ono, and Takahiro Sakurai.

Part 4 of the manga is set 11 years after Part 3 in S City in M Prefecture of Japan, and the story follow the misadventures of Jōsuke Higashikata and his companions.

The JoJo's Bizarre Adventure television anime aired from October to April 2012, and covered the first two parts of the manga. The manga's Part 3 inspired another television anime project from April to September 2014, and from January to June 2015.

Update: Wataru Takagi's name spelling corrected. Dengeki G's Magazine's website has since removed the article, although a cache of the article is still available.

Update 2: The December issue of Shueisha's Ultra Jump magazine confirmed on Thursday that the information from Dengeki G's Magazine's now-removed article is correct.

[Via Anime Voice]