Madhouse Inc. (Japanese: 株式会社マッドハウス Hepburn: Kabushiki-gaisha Maddohausu, stylized as MADHOUSE) is a Japanese animation studio founded in 1972 by ex–Mushi Pro animators, including Masao Maruyama, Osamu Dezaki, Rintaro and Yoshiaki Kawajiri.
Madhouse has created and helped to produce many well-known shows, OVAs and films, starting with TV anime series Ace o Nerae! (produced by Tokyo Movie) in 1973, and including Wicked City, Ninja Scroll, Perfect Blue, Vampire Hunter D: Bloodlust, Trigun, Di Gi Charat, Black Lagoon, Death Note, Paprika, Wolf Children and the first season of One-Punch Man. Unlike other studios founded at this time such as AIC and J.C.Staff, their strength was and is primarily in TV shows and theatrical features. Expanding from the initial Mushi Pro staff, Madhouse recruited such important directors as Morio Asaka, Masayuki Kojima, and Satoshi Kon during the 1990s. Their staff roster expanded in the 2000s to include Mamoru Hosoda, Takeshi Koike, and Mitsuo Iso, as well as many younger television directors. The studio was also responsible for the first Beyblade anime series as well as the Dragon Drive anime and the 2011 anime adaptation of Hunter × Hunter.
The studio often collaborates with known manga artists, including Naoki Urasawa and Clamp. Madhouse produced adaptations of Urasawa’s YAWARA!, Master Keaton and Monster, with Masayuki Kojima helming the later two. The company has animated a number of CLAMP’s titles, including Tokyo Babylon, two versions of X (a theatrical movie and a TV series), Cardcaptor Sakura, Chobits and CLAMP in Wonderland.
In February 2004, Madhouse became a subsidiary of Index Corporation.
On February 8, 2011, Nippon TV became Madhouse’s primary stockholder (replacing Index Corporation), via a third-party allocation of new shares. NTV bought 128,667 new shares (each ¥7,772) issued by Madhouse for ¥999,999,924 total (about $12.4 million), raising its stake in the company from 10.4% to 84.5%. Index Corporation’s stake in Madhouse fell from 60.91% to 10.54%.
In January 2012, Madhouse announced their acquisition of the animation rights to the Peanuts comic strip.
In March 2014, NTV bought all the shares belonging to Index Corporation, increasing its stake in Madhouse to 95%.