Notable roles by Kosuke Toriumi:
- Acnologia in Fairy Tail.
- Akira in Togainu no Chi (as Spoon Sakiware in the PC version)
- Andy W. Hol in Aquarion Evol
- Archer/Robin Hood in Fate/EXTRA
- Azusa Asahina in Brothers Conflict
- Blacky (Umbreon) in Pokémon Mystery Dungeon: Gates to Infinity promotional trailer
- Borg in Mirai Sentai Timeranger
- Captain Ash aka Asemu Asuno in Mobile Suit Gundam AGE.
- Cecil Aijima in Uta no Prince-sama
- Charlie Nash in Street Fighter V
- Chou Reiyu in Hitori no Shita: The Outcast
- Curio in Romeo X Juliet
- Duvan Org in 2nd Super Robot Wars Original Generation
- Endorph in Soul Nomad & the World Eaters
- Epsilon/Shun Kazami in Towa no Quon
- Farel in Sol Trigger
- Fei Long in Street Fighter Alpha 3
- Flashy Flash in One-Punch Man
- Fryderyk Chopin ("Cho-chan") in Classicaloid
- Fujii Ren and Mercurius in Dies Irae (as Spoon Sakiware)
- Garlot in Blaze Union
- Gilbert Nightray in Pandora Hearts
- Gilles de Rais in Makai Ouji
- Girge in Break Blade
- Gordeau in Under Night In-Birth
- Guy in the newer CD dramas and new OVAs of Ai no Kusabi succeeding Kouji Tsujitani.
- Hajime Mutsuki in Tsukiuta
- Haruhiko Usami in Junjou Romantica
- Hector in Fire Emblem Heroes
- Hong Yun-seong in Soulcalibur
- Hot Shot in Transformers: Super Link
- Inui in From the New World
- Jinbu in Transformers: Go!
- Julio Ikaruga Mizurugi in Cross Ange
- Junpei Iori in Persona 3
- Eikichi Mishina in Persona 2 (Second role shared with Troy Baker)
- Juris Gruden in Atelier Ayesha
- Kalas in Baten Kaitos
- Kaname Manaka in Diamond no Ace
- Kiba Inuzuka in Naruto
- Kiyosumi Sengoku in The Prince of Tennis
- Kiyotaka Ishimaru in Danganronpa
- Kouichi Tsuruuchi in Knights of Sidonia
- Kouga Gennosuke in Basilisk
- Kouichi Azuma in Kimi to Boku
- Kousuke Wakamatsu in Kuroko no Basuke
- Kurotabou in both seasons of Nurarihyon No Mago
- Kurtis in Disgaea: Hour of Darkness
- Kyoukai-san in Active Raid
- Leon in Rune Factory 4
- Li Dian in Dynasty Warriors 8
- Lin Xue Ya/Rin Setsua in Thunderbolt Fantasy
- Little Mac in Super Smash Bros. for Nintendo 3DS & Wii U
- Madara Mikejima in Ensemble Stars
- Madoka Hanabusa and his alternate future self, Bishop in Clock Zero
- Mikazuki Munechika in Touken Ranbu
- Naze Turbine in Mobile Suit Gundam: Iron-Blooded Orphans
- Nephrite in Sailor Moon Crystal
- Red Alert in Q Transformers: Kaettekita Convoy no Nazo
- Rik Heisenberg in Di Gi Charat
- Saitou Hajime in Hakuouki
- Abe no Seimei in Akanesasu Sekai de Kimi to Utau
- Shio Takahata in Tokyo Xanadu
- Shu Sakamaki in Diabolik Lovers
- Shunsuke Imaizumi in Yowamushi Pedal
- Sosei Abe in Laughing Under the Clouds
- Sousou in Juuzaengi
- Soutarou Kanou in Maid-Sama!
- Strider Hiryu in Strider 2, Namco x Capcom, and Project X Zone 2
- Strider Hien in Strider 2 and Namco x Capcom.
- He also did minor bosses Metall Hengst and The Professor in Strider 2.
- Phoenix Wright/Ryuuichi Naruhodou in Ultimate Marvel vs. Capcom 3 (taking over for Takayuki Kondo)
- Fei Long in Street Fighter Alpha 3 (portable versions). (Yuuichi Nakamura takes over for Street Fighter IV)
- Szayel Aporro Granz in Bleach (Oh so Playing Against Type)
- Takato Kiyosu in Exit Tunes Presents ACTORS
- Tanya's male previous incarnation in Youjo Senki.
- Taro Misaki (adult) in Captain Tsubasa Road to 2002
- Todo Heisuke in Peacemaker Kurogane
- Valério Calvados in Dog Days
- Walnut in Phantom Brave
- Wei Ping/Behei in Kingdom
- Yuri Lowell in Tales of Vesperia and Project X Zone (First role shared with Troy Baker)
- Yuuji Kousaka in To Heart 2
- Yuzuki Ogata in Cuticle Detective Inaba
