19 Films with screenplays by Ichirō Ōkouchi

Angelic Layer is a Japanese manga series created by Clamp. The manga was published in Japan by Kadokawa Shoten, and in English originally by Tokyopop, but has since been re-licensed by Dark Horse Comics. It was the group's first work using a significantly pared down style, which lowered emphasis on detail and accentuated posing and gestures. It would later be repeated in series like Chobits and Tsubasa: Reservoir Chronicle.

Azumanga Daioh is a Japanese yonkoma comedy manga series written and illustrated by Kiyohiko Azuma. It was serialized from February 1999 to May 2002 in the monthly magazine Dengeki Daioh by MediaWorks; three additional chapters were published in Shogakukan's Monthly Shōnen Sunday in May 2009 to celebrate the manga's tenth anniversary. The manga was first released in English by ADV Manga, and later re-issued by Yen Press.

Berserk: The Golden Age Arc is a Japanese anime film trilogy, which adapts Kentaro Miura's Berserk manga series, specifically its Golden Age arc, and was produced by Studio 4°C. The first two films, The Egg of the King and The Battle for Doldrey, were released in Japan in February and June 2012, and the third film, The Advent, was released in February 2013. In North America, Viz Media has licensed the trilogy for English home video release.

Brave Story is a Japanese fantasy novel written by Miyuki Miyabe. It was serialized in various regional newspapers between November 11, 1999 and February 13, 2001, before being published in two hardcover volumes by Kadokawa Shoten in March 2003. The story of the novel follows 5th Grade student Wataru Mitani as he stumbles upon "Vision", a fantasy world, after his parents divorce and his mother attempts suicide. The novel is available in the English language by Viz Media.

Code Geass Lelouch of the Re;surrection is a 2019 Japanese animated military mecha science fantasy film based on Code Geass co-created by director Gorō Taniguchi and writer Ichirō Ōkouchi. The film is directed by Taniguchi, written by Ōkouchi, and produced by Sunrise. The film was released in Japan on February 9, 2019.

Code Geass Lelouch of the Rebellion is a Japanese three-part animated military mecha alternate history film based on an anime television series with the same name co-created by director Gorō Taniguchi and writer Ichirō Ōkouchi. The three-part film was directed by Taniguchi, written by Ōkouchi, and produced by Sunrise. The first film, Initiation, was released on October 21, 2017. The second film, Transgression, was released on February 10, 2018. The third film, Glorification, was released on May 26, 2018.

Code Geass: Lelouch of the Rebellion , often referred to simply as Code Geass, is a Japanese anime television series produced by Sunrise. It was directed by Gorō Taniguchi and written by Ichirō Ōkouchi, with original character designs by Clamp. Set in an alternate timeline, it follows the exiled prince Lelouch vi Britannia, who obtains the "power of absolute obedience" from a mysterious woman named C.C. Using this supernatural power, known as Geass, he leads a rebellion against the rule of the Holy Britannian Empire, commanding a series of mecha battles.

Devilman Crybaby is a 2018 Japanese original net animation (ONA) anime series based on Go Nagai's manga series Devilman. The series is directed by Masaaki Yuasa, produced by Aniplex and Dynamic Planning, animated by Science SARU, and released by Netflix. Yuasa was offered the opportunity to create a Devilman project by Aniplex, and envisioned Crybaby by incorporating what he believed Nagai would explore in terms of graphic content had the author not been restrained by the shōnen demographic of the original series. Announced in 2017 to mark Nagai's 50th anniversary as a creator, Crybaby was made available for worldwide streaming on January 5, 2018 as a Netflix original series.

Guilty Crown is a 2011 Japanese anime television series produced by Production I.G which aired on Fuji TV's noitamina program block from October 13, 2011. The story revolves around Shu Ouma, a high school boy who comes into possession of an ability called the "Power of the King" allowing him to draw out items called "Voids" from other people. He is then thrown into the conflict between a quasi-governmental organization known as GHQ and a rebel organization called Funeral Parlor which aims to restore Japan's independence from the GHQ. In the process, Shu has to deal with the burden his ability puts on his shoulders and the horrific mystery of his past.

Kabaneri of the Iron Fortress is a Japanese anime television series by Wit Studio. It was broadcast for 12 episodes on Fuji TV's Noitamina programming block from April to June 2016. The series was streamed on Amazon Prime Instant Video service. Two compilation films premiered in Japanese theaters in December 2016 and January 2017. Crunchyroll and Funimation co-released the anime on Blu-ray and DVD in the United States; Crunchyroll also acquired the merchandise rights.

Lupin the 3rd Part V: Misadventures in France, also known simply as Lupin the 3rd Part 5 , is a Japanese anime television series in the Lupin the Third franchise, produced at Telecom Animation Film and directed by Yūichirō Yano and written by Ichirō Ōkouchi. It is the sixth television anime series based on Monkey Punch's manga series Lupin the Third, following 2015's Part IV. The series aired from April 4 to September 18, 2018, on Japanese television, and was simulcast with English subtitles by Crunchyroll. It was later dubbed and premiered on Adult Swim's Toonami programming block on June 16, 2019.

Magic Tree House is a 2011 Japanese animated fantasy film based on the American children's book series of the same name by Mary Pope Osborne. The film is directed by Hiroshi Nishikiori, and the film's screenplay was adapted from the Japanese version of the novel series Magic Tree House by Ichiro Okouchi. The film stars actress Keiko Kitagawa as Jack, and also stars child actress Mana Ashida as Annie.

Mobile Suit Gundam: The 08th MS Team is an original video animation (OVA) anime series in the Gundam franchise. Released from January 25, 1996, to July 25, 1999, the 12-episode series details the exploits of an Earth Federation ground unit during the One Year War - specifically a month after the beginning of the original 1979 Gundam series and into the final weeks of the war.

Negima! Magister Negi Magi, known in Japan as Magical Teacher Negima! , is a Japanese manga series written and illustrated by Ken Akamatsu. It was serialized in Kodansha's Weekly Shōnen Magazine from February 2003 to March 2012, with its chapters collected into 38 tankōbon volumes.

Planetes is a Japanese hard science fiction manga written and illustrated by Makoto Yukimura. It was adapted into a 26-episode anime television series by Sunrise, which was broadcast on NHK from October 2003 through April 2004. The story revolves around the crew of a space debris collection craft in the year 2075.

Princess Principal is a Japanese anime television series produced by Studio 3Hz and Actas. The series was directed by Masaki Tachibana and written by Ichirō Ōkouchi, with original character designs by Kouhaku Kuroboshi and Yukie Akiya, and music by Yuki Kajiura. The series aired from July to September 2017. The first two installments of a six-part sequel film series Princess Principal: Crown Handler have also been released. A mobile game, Princess Principal: Game of Mission, was launched in August 2017, and was available until December 28, 2018.

Shigofumi: Letters from the Departed, titled Shigofumi: Stories of Last Letter in Japan, or simply Shigofumi, is a Japanese anime television series created by Tomorō Yuzawa and produced by Bandai Visual and Genco, which aired in Japan on Chiba TV and other networks between January 6 and March 22, 2008, and contains twelve episodes. An original video animation episodes was included with the final anime DVD volume released on September 26, 2008. A light novel series was originally adapted from the anime's premise set by Tomorō Yuzawa, featuring story composition and illustrations by Ryō Amamiya and Poko, respectively. Four novels were published by MediaWorks under their Dengeki Bunko imprint between October 2006 and March 2008. Despite the novels being produced first, the anime is considered the original work, as stated by Yuzawa. The anime was acquired by Bandai Visual for English language localization. The title Shigofumi comes from the combination of the Japanese words for "after death" , and "letter" , which literally translates to an "after death letter". However, the release was cancelled and Bandai Visual closed its North American branch. Sentai Filmworks picked up the license and released the entire series on DVD in 2010.

Valvrave the Liberator is a Japanese mecha anime series, produced by Sunrise. It is directed by Kō Matsuo and written by Ichirō Ōkouchi. The series is set in a futuristic date in which three factions divided from 70% of mankind are in war. It focuses on Haruto Tokishima, a high school student from the faction of JIOR who pilots one of the highly advanced weaponized mecha technology called the Valvrave to stop the Dorssian forces.