Ken Ootsuka Filmography
| 2012 | Smile Precure! (TV Series) |
| 2007 | Yes! Precure 5 (TV Series) |
| 2025 | Mobile Suit Gundam GQuuuuuuX (TV Series) · as Key Animation |
| 2025 | Mobile Suit Gundam GQuuuuuuX: Beginning · as Key Animation |
| 2025 | From Bureaucrat to Villainess: Dad's Been Reincarnated! (TV Series) · as Key Animation |
| 2024 | Dragon Ball Daima (TV Series) · as Key Animation |
| 2023 | The Birth of Kitaro: Mystery of GeGeGe · as Key Animation |
| 2023 | Gridman Universe · as Key Animation |
| 2021 | Eureka: Eureka Seven Hi-Evolution · as Lead Animator |
| 2021 | SSSS.DYNAZENON (TV Series) · as Key Animation |
| 2021 | Mushoku Tensei: Jobless Reincarnation (TV Series) · as Key Animation |
| 2020 | Looking for Magical DoReMi · as Key Animation |
| 2020 | Dragon Quest: The Adventure of Dai (2020) (TV Series) · as Key Animation |
| 2019 | Promare · as Key Animation |
| 2019 | Carole & Tuesday (TV Series) · as Key Animation |
| 2018 | Dragon Ball Super: Broly · as Key Animation |
| 2018 | Anemone: Eureka Seven Hi-Evolution · as Key Animation |
| 2018 | SSSS.GRIDMAN (TV Series) · as Key Animation |
| 2017 | Eureka Seven: Hi-Evolution 1 · as Lead Animator |
| 2017 | Sword Art Online the Movie: Ordinal Scale · as Key Animation |
| 2016 | Mob Psycho 100 (TV Series) · as Key Animation |
| 2016 | Bungo Stray Dogs (TV Series) · as Key Animation |
| 2015 | Mobile Suit Gundam: Iron-Blooded Orphans (TV Series) · as Key Animation |
| 2015 | Dragon Ball Super (TV Series) · as Key Animation |
| 2015 | Fafner Exodus (TV Series) · as Key Animation |
| 2014 | Sailor Moon Crystal (TV Series) · as Key Animation |
| 2014 | Captain Earth (TV Series) · as Key Animation |
| 2013 | Star Driver the Movie · as Key Animation |
| 2012 | From the New World (TV Series) · as Key Animation |
| 2011 | Horizon in the Middle of Nowhere (TV Series) · as Animation Director |
| 2011 | No. 6 (TV Series) · as Key Animation |
| 2010 | Fafner: Heaven and Earth · as Key Animation |
| 2010 | Armored Trooper VOTOMS: Case;Irvine · as Key Animation |
| 2010 | STAR DRIVER: Takuto of the Radiance (TV Series) · as Key Animation |
| 2010 | Mobile Suit Gundam 00: A Wakening of the Trailblazer · as Key Animation |
| 2010 | Model Suit Gunpla Builders Beginning G (TV Series) · as Key Animation |
| 2010 | Mobile Suit Gundam Unicorn (TV Series) · as Key Animation |
| 2010 | Halo Legends (TV Series) · as Key Animation |
| 2010 | Gekijouban Fate/Stay Night: Unlimited Blade Works · as Key Animation |
| 2009 | One Piece: Strong World · as Key Animation |
| 2009 | Welcome to Irabu's Office (TV Series) · as Key Animation |
| 2009 | Summer Wars · as Key Animation |
| 2009 | Naruto Shippûden: The Movie 3: Inheritors of the Will of Fire · as Key Animation |
| 2008 | Dragon Ball: The Return of Son Goku and Friends! · as Key Animation |
| 2008 | Casshern Sins (TV Series) · as Key Animation |
| 2008 | Gurren Lagann the Movie: Childhood's End · as Key Animation |
| 2008 | The Garden of Sinners: Remaining Sense of Pain · as Key Animation |
| 2008 | Rin: Daughters of Mnemosyne (TV Series) · as Key Animation |
| 2007 | Evangelion: 1.0 You Are (Not) Alone · as Key Animation |
| 2007 | Mononoke (TV Series) · as Key Animation |
| 2007 | Blue Dragon (TV Series) · as Key Animation |
| 2007 | iDOLM@STER Xenoglossia (TV Series) · as Animation Director |
| 2007 | Heroic Age (TV Series) · as Mechanical Designer |
| 2007 | Gurren Lagann (TV Series) · as Key Animation |
| 2007 | One Piece: Episode of Alabasta - The Desert Princess and the Pirates · as Key Animation |
| 2007 | Afro Samurai (TV Series) · as Key Animation |
| 2006 | Gunbuster vs Diebuster: Aim for the Top! The GATTAI!! Movie · as Key Animation |
| 2006 | Mobile Suit Z Gundam III: A New Translation - Love Is the Pulse of the Stars · as Key Animation |
| 2005 | Gaiking: LEGEND OF DAIKU-MARYU (TV Series) · as Key Animation |
| 2005 | Konjiki no Gashbell 2: Attack of the Mecha Vulcans · as Key Animation |
| 2005 | Fullmetal Alchemist the Movie: Conqueror of Shamballa · as Key Animation |
| 2005 | Eureka Seven (TV Series) · as Key Animation |
| 2005 | Basilisk (TV Series) · as Key Animation |
| 2005 | KARAS (TV Series) · as Key Animation |
| 2005 | One Piece: Baron Omatsuri and the Secret Island · as Key Animation |
| 2005 | The Prince of Tennis: Two Samurais, the First Game · as Key Animation |
| 2004 | Mobile Suit Z Gundam: A New Translation - Heirs to the Stars · as Key Animation |
| 2004 | Bleach (TV Series) · as Key Animation |
| 2004 | Ninja Nonsense (TV Series) · as Key Animation |
| 2004 | Otogi Zoshi (TV Series) · as Key Animation |
| 2004 | Kurau: Phantom Memory (TV Series) · as Key Animation |
| 2004 | Samurai 7 (TV Series) · as Key Animation |
| 2003 | Naruto: The Lost Story - Mission: Protect the Waterfall Village · as Key Animation |
| 2003 | RahXephon: The Motion Picture - Pluralitas Concentio · as Key Animation |
| 2002 | Blue Gender: The Warrior · as Key Animation |
| 2002 | Gravion (TV Series) · as Key Animation |
| 2002 | Naruto (TV Series) · as Key Animation |
| 2002 | Detective Conan: The Phantom of Baker Street · as Key Animation |
| 2002 | Ai Yori Aoshi (TV Series) · as Key Animation |
| 2002 | RahXephon (TV Series) · as Key Animation |
| 2001 | Sakura Wars: The Movie · as Key Animation |
| 2001 | Cyborg 009: The Cyborg Soldier (TV Series) · as Key Animation |
| 2001 | Rave Master (TV Series) · as Key Animation |
| 2001 | Cowboy Bebop: The Movie - Knockin' on Heaven's Door · as Key Animation |
| 2001 | Digimon Tamers: Battle of Adventurers · as Key Animation |
| 2001 | Shaman King (TV Series) · as Key Animation |
| 2001 | Alien Nine (TV Series) · as Key Animation |
| 2001 | The SoulTaker (TV Series) · as Key Animation |
| 2001 | Puni Puni Poemy (TV Series) · as Key Animation |
| 2001 | One Piece: Clockwork Island Adventure · as Key Animation |
| 2001 | Zone of the Enders: Idolo · as Key Animation |
| 2000 | Digimon Adventure 02: Hurricane Touchdown!! The Golden Digimentals · as Key Animation |
| 1999 | Dai-Guard: Terrestrial Defense Corp. (TV Series) · as Key Animation |
| 1999 | Crest of the Stars (TV Series) · as Key Animation |
| 1998 | Gundam Wing: The Movie - Endless Waltz · as Key Animation |
| 1998 | Mobile Suit Gundam: The 08th MS Team - Miller's Report · as Key Animation |
| 1998 | One Piece: Defeat Him! The Pirate Ganzack! · as Key Animation |
| 1998 | Shadow Skill (TV Series) · as Key Animation |
| 1998 | Detective Conan: The Fourteenth Target · as Key Animation |
| 1998 | Cowboy Bebop (TV Series) · as Key Animation |
| 1997 | Voogie's Angel (TV Series) · as Key Animation |
| 1997 | Virus Buster Serge (TV Series) · as Key Animation |
| 1997 | Flame of Recca (TV Series) · as Key Animation |
| 1997 | Wild Cardz (TV Series) · as Key Animation |
| 1997 | Detective Conan: The Time Bombed Skyscraper · as Key Animation |
| 1996 | Slayers Return · as Key Animation |
| 1996 | Battle Arena Toshinden (TV Series) · as Key Animation |
| 1996 | Rurouni Kenshin (TV Series) · as Key Animation |
| 1995 | Wild Knights Gulkeeva (TV Series) · as Key Animation |
| 1994 | Mobile Fighter G Gundam (TV Series) · as Key Animation |
| 1992 | Sailor Moon (TV Series) · as Key Animation |
| 1989 | The Guyver: Bio-Booster Armor · as Key Animation |
| 1989 | The Guyver: Bio-Booster Armor (TV Series) · as Key Animation |
| 1988 | Gunbuster (TV Series) · as Key Animation |