Showtaro Morikubo is a Japanese voice actor.
| Series | Ishura | Regnejee the Wings of Sunset (voice) | 2024-01-03 |
| Series | Himitsu no AiPri | MC Aimu (voice) | 2024-04-07 |
| Series | Acro Trip | Baryū Ōmizo (voice) | 2024-10-02 |
| Movie | Nintama Rantarō: Invincible Master of the Dokutake Ninja | Konnamon Zatto (voice) | 2024-12-20 |
| Series | Fate/strange Fake | Caster (voice) | 2024-12-31 |
| Movie | Fate/strange Fake -Whispers of Dawn- | Caster (voice) | 2023-07-02 |
| Movie | One Piece Film Red | Bartolomeo (voice) | 2022-08-06 |
| Movie | Ensemble Stars!! -Road to Show-- | Makoto Yuki (voice) | 2022-03-04 |
| Series | Ultra Galaxy Fight: The Destined Crossroad | 2022-04-29 | |
| Series | WAVE!! -Let's go surfing!!- | Soichiro William Mori (voice) | 2021-01-11 |
| Series | Tokyo Revengers | Tetta Kisaki (voice) | 2021-04-11 |
| Series | I★Chu: Halfway Through the Idol | Satsuki Kururugi (voice) | 2021-01-06 |
| Movie | Ultra Galaxy Fight: The Absolute Conspiracy | Ultraman Taro | 2021-06-07 |
| Movie | Ultra Galaxy Fight: The Destined Crossroad | Ultraman Taro | 2021-12-27 |
| Movie | Demon Slayer: Kimetsu no Yaiba Mt. Natagumo Arc | Spider demon (Brother) (voice) | 2021-11-17 |
| Series | Shadowverse | Gentleman (voice) | 2020-04-07 |
| Series | CARDFIGHT!! VANGUARD EXTRA STORY -if- | 2020-04-30 | |
| Series | Sorcerous Stabber Orphen | Orphen (voice) | 2020-01-07 |
| Movie | WAVE!! Surfing Yappe!! - Chapter 1 | Soichiro William Mori (voice) | 2020-10-02 |
| Movie | WAVE!! Surfing Yappe!! - Chapter 3 | Soichiro William Mori (voice) | 2020-10-30 |
| Movie | WAVE!! Surfing Yappe!! - Chapter 2 | Soichiro William Mori (voice) | 2020-10-16 |
| Series | Demon Slayer: Kimetsu no Yaiba | Kumo no Oni (Brother) | 2019-04-06 |
| Movie | One Piece: Stampede | Bartolomeo (voice) | 2019-01-03 |
| Series | NAMUAMIDABUTSU! -UTENA- | 釈迦如来 | 2019-04-08 |
| Movie | Utano Princesama Maji LOVE Kingdom | Reiji Kotobuki (voice) | 2019-06-14 |
| Series | Ensemble Stars! | Makoto Yūki | 2019-07-07 |
| Series | Major 2nd | Gorō Shigeno (voice) | 2018-04-07 |
| Series | Isekai Izakaya: Japanese Food from Another World | Nikolaus (voice) | 2018-04-13 |
| Series | Boruto: Naruto Next Generations | Shikamaru Nara (voice) | 2017-04-05 |
| Series | Chiruran 1/2 | Keisuke Yamanami (voice) | 2017-01-10 |
| Series | Code:Realize | (voice) | 2017-10-07 |
| Series | Thus Spoke Kishibe Rohan | Akira Otoishi (voix) | 2017-09-20 |
| Movie | Mazinger Z: Infinity | Koji Kabuto (voice) | 2017-10-27 |
| Movie | Code Geass: Akito the Exiled 5: To Beloved Ones | (voice) | 2016-02-06 |
| Series | First Love Monster | 金子十六 | 2016-07-02 |
| Series | B-PROJECT | Hikaru Osari (voice) | 2016-07-03 |
| Movie | Naruto OVA 13: The Day Naruto Became Hokage | Shikamaru Nara (voice) | 2016-07-06 |
| Movie | Code Geass: Akito the Exiled 3: The Brightness Falls | (voice) | 2015-05-02 |
| Movie | Diabolik Lovers OVA | Shin Tsukinami | 2015-02-26 |
| Movie | Code Geass: Akito the Exiled 4: Memories of Hatred | (voice) | 2015-07-04 |
| Series | Classroom Crisis | Kaito Sera (voice) | 2015-07-04 |
| Movie | Yowamushi Pedal: The Movie | Yusuke Makishima | 2015-08-28 |
| Movie | Boruto: Naruto the Movie | Shikamaru Nara (voice) | 2015-08-07 |
| Series | Momokyun Sword | Sarugami (voice) | 2014-07-09 |
| Series | Love Stage!! | Kojirou Ryuuzaki (voice) | 2014-07-10 |
| Series | Bakumatsu Rock | Kogorou Katsura (voice) | 2014-07-02 |
| Movie | Zyuden Sentai Kyoryuger: 100 Years After | Remorseful Knight Arslevan | 2014-06-20 |
| Series | Persona 4 The Golden Animation | Yosuke Hanamura (voice) | 2014-07-11 |
| Series | A Good Librarian Like a Good Shepherd | Ikkei Takamine (voice) | 2014-10-09 |
| Movie | Yowamushi Pedal Re:RIDE | 2014-09-19 | |
| Movie | The Last: Naruto the Movie | Shikamaru Nara (voice) | 2014-12-06 |
| Movie | Shingeki no Bahamut: Genesis Recap | (voice) | 2014-11-18 |
| Series | Rage of Bahamut | Hansa (voice) | 2014-10-06 |
| Movie | Aura: Koga Maryuin's Last War | Kume (voice) | 2013-04-13 |
| Movie | Hakuouki: Wild Dance of Kyoto | Souji Okita (voice) | 2013-08-24 |
| Movie | Code Geass: Akito the Exiled 2: The Wyvern Divided | Oscar Hammel (voice) | 2013-09-14 |
| Series | Yowamushi Pedal | Makishima Yūsuke (voice) | 2013-10-07 |
| Movie | Persona4 the ANIMATION -The Factor of Hope- | 2012-06-09 | |
| Series | Daily Lives of High School Boys | Matsumoto Takahiro (voice) | 2012-01-10 |
| Series | Ai no Kusabi | Kirie (voice) | 2012-01-18 |
| Series | Utakoi | 阳成院 (voice) | 2012-07-03 |
| Movie | Road to Ninja: Naruto the Movie | Shikamaru Nara (voice) | 2012-07-28 |
| Movie | Fairy Tail: Phoenix Priestess | Dist (voice) | 2012-08-18 |
| Series | JoJo's Bizarre Adventure | Akira Otoishi (voice) | 2012-10-06 |
| Movie | Code Geass: Akito the Exiled 1: The Wyvern Arrives | (voice) | 2012-08-04 |
| Movie | Nintama Rantaro the Movie: Ninjutsu Academy - All Hands on Deck! | Konnamon Zatto (voice) | 2011-03-12 |
| Series | Cardfight!! Vanguard | Taishi Miwa | 2011-01-08 |
| Movie | Legend of the Millennium Dragon | Tsuna Watanabeno (voice) | 2011-04-29 |
| Movie | Naruto Shippuden the Movie: Blood Prison | Shikamaru Nara (voice) | 2011-07-30 |
| Series | PERSONA 4 the Animation | Yosuke Hanamura (voice) | 2011-10-07 |
| Movie | The Voice Makes a Miracle | 2011-11-19 | |
| Movie | Wonderful World | 2010-06-19 | |
| Movie | Naruto Shippuden the Movie: The Will of Fire | Shikamaru Nara (voice) | 2009-08-01 |
| Series | Asura Cryin' | Reishiro Saeki | 2009-04-02 |
| Movie | Jikuu Keisatsu Hyperion | 織田 優生(おだ ゆうせい) / 時空刑事オリオン | 2009-07-25 |
| Series | 11eyes | Takahisa Tajima | 2009-10-07 |
| Movie | 10th Anniversary Project: Masked Rider LIVE & SHOW | Apprentice Combatant Woo, Ganikomoru, Lion Trooper (voice) | 2009-11-21 |
| Series | Amatsuki | Tsuyukusa (voice) | 2008-04-04 |
| Movie | Naruto Shippuden the Movie: Bonds | Shikamaru Nara (voice) | 2008-08-02 |
| Movie | Major: The Ball of Friendship | Goro Honda | 2008-07-09 |
| Series | Winter Cicada | Masanoshin Aizawa (voice) | 2007-02-23 |
| Series | Naruto Shippūden | Shikamaru Nara (voice) | 2007-02-15 |
| Movie | Naruto Shippuden the Movie | Shikamaru Nara (voice) | 2007-08-04 |
| Series | Nerima Daikon Brothers | Ichiro (voice) | 2006-01-09 |
| Series | The Wallflower | Kyohei Takano (voice) | 2006-10-03 |
| Movie | I'm in Love With My Little Sister | Yori Yuuki (voice) | 2005-05-18 |
| Movie | Embracing Love: A Cicada in Winter | (voice) | 2005-05-27 |
| Movie | Final Fantasy VII: Advent Children | Kadaj (voice) | 2005-07-14 |
| Movie | Naruto the Movie: Legend of the Stone of Gelel | Shikamaru Nara (voice) | 2005-08-06 |
| Movie | Ichigeki Sacchuu!! Hoihoi-san | Aburatsubo | 2004-09-30 |
| Series | The Melody of Oblivion | ホル / Horu | 2004-04-06 |
| Series | Samurai Gun | Ichimatsu | 2004-10-04 |
| Series | Tokyo Daigaku Monogatari | Naoki Murakami (voice) | 2004-12-10 |
| Series | Major | Gorō Shigeno (voice) | 2004-11-13 |
| Series | Ikki Tousen | Genpo Saji / Shizen Osou (voice) | 2003-07-30 |
| Series | Papuwa | Umigishi-kun | 2003-09-30 |
| Series | Cheeky Angel | Gakusan Takao | 2002-04-07 |
| Series | Tokyo Underground | Kashin (voice) | 2002-04-02 |
| Series | Naruto | Shikamaru Nara (voice) | 2002-10-03 |
| Series | GetBackers | Ginji Amano (voice) | 2002-10-05 |
| Movie | 劇場版naruto-ナルト-赤い四つ葉のクローバーを探します | 奈良鹿丸 | 2002-12-20 |
| Series | Duel Masters | Duel Jacker Shou (voice) | 2002-10-21 |
| Series | Ajimu: Beach Story | Kazuki Izumiya (voice) | 2001-06-15 |
| Series | Haré+Guu | Robert (voice) | 2001-04-03 |
| Series | Babel II: Beyond Infinity | Hikari Homura (voice) | 2001-10-05 |
| Series | Prétear | Gō (voice) | 2001-04-04 |
| Series | Rave Master | Hamrio Musica (voice) | 2001-10-13 |
| Movie | Kai Doh Maru | Raikou Minamotono (voice) | 2001-12-19 |
| Series | Cyborg 009 | Jet Link / Cyborg 002 (voice) | 2001-10-14 |
| Series | Android Kikaider | Kikaider-01 (voice) | 2000-10-16 |
| Series | Star Bows | Alain Alto | 2000-12-07 |
| Series | I'm Gonna Be An Angel! | Raphael | 1999-04-07 |
| Series | Kamikaze Kaitou Jeanne | Kagura Kanataki | 1999-02-13 |
| Movie | The Uncut Story of Mewtwo's Origin | Young Mewtwo (voice) | 1999-07-08 |
| Series | Bucky - The Incredible Kid | Hyou (voice) | 1999-10-05 |
| Series | Samurai: Hunt for the Sword | 楯岡新十郎 | 1999-11-26 |
| Series | Excel Saga | Norikuni Iwata (voice) | 1999-10-07 |
| Series | Nightwalker: The Midnight Detective | Angel | 1998-07-08 |
| Series | Record of Lodoss War: Chronicles of the Heroic Knight | Cecil (voice) | 1998-04-01 |
| Movie | Spriggan | Yu Ominae (voice) | 1998-09-05 |
| Series | Blue Submarine No. 6 | Verg (voice) | 1998-10-25 |
| Series | Chousoku Spinner | Shunichi Domoto | 1998-11-30 |
| Series | Orphen | Orphen (voice) | 1998-10-03 |