| Be-Bop High school | Katoh Hiroshi |
| Capricorn | Jill |
| Card Captor Sakura | Kerberos (big) |
| Detective Conan [Meitantei Conan] {episode 55} | Kobayashi |
| Gatchaman '94 | G-1 Ken |
| Ge Ge Ge no Kitarou | crow tengu B |
| Hoshikuzu Paradise | Yuzuru |
| Kamikaze Kaitou Jeanne {episode 22} | Kaisei |
| Mahou Tsukai Tai! | Takakura Takeo |
| Maps [debut] | Karion |
| Master Mosquiton '99 {Episode 11} | Soron |
| Nineteen | Kubota Kazushi |
| Omakase Scrappers | Ten Q |
| Omakase Scrappers | Narimasu |
| Pet Shop of Horror | Leon Alcott |
| Pocket Monsters {Episode 13} | Masaki |
| Risky Safety | Moe's father |
| Sailor Moon | Jadeite |
| Sailor Moon {episode 92} | Kameda |
| Slam Dunk | Aida Hikoichi |
| Slam Dunk | Yasuda |
| Trigun | Vash The Stampede |
| Tsuyoshi Shikkari Shinasai | Ikawa Tsuyoshi |
| Utsunomiko | Misc. males voices |
| Animal Magnetism [Win95, Win98] | Leon |
| Emerald Dragon [PC Engine] | Carswer |
| Shin Sangoku Musou [Playstation 2] | Chou Un |
| Shin Sangoku Musou [Playstation 2] | Sho Katsu Ryou (Zhu Ge Liang) |
| D.N.Angel Wink [CD] | ? |
| Emerald Dragon [CD] | Carswer |
| Lunatic Dawn III [CD] | Akugyaku no Lunatic |
| Lunatic Dawn III [CD] | narrator |
| Momo Iro Sisters Office Version [CD] | Tokawa Keisuke |
| Motto! Tokimeki Memorial [CD] | Takami Naoto |
| Sentimental Graffiti [CD] {Omoide no School Days} | Kaho's teacher |
| Tokimeki Memorial Love Song wo Kimi ni [CD] | Takami Naoto |
| Tokimeki Memorial Saigo no Natsuyasumi [CD] | Takami Naoto |
| Trigun -The Second Donut Happy Pack- [CD] | Vash The Stampede |
Lookup latest CD information for Onosaka Masaya in the seiyuu database
| Seiyuu Grand Prix volume 7, 1996.07.?? {5 P} | Tokimemo article, COLOR |
| Virtual Idol 10, 1996.08.22 {1 P} | radio recording, MONO |
| Ani Raji Grand Prix 6, 1997.02.26 {2 P} | article, COLOR |
| Ani Raji Grand Prix 10, 1997.10.26 {1/2 P} | article, COLOR |
| Ani Raji Grand Prix 11, 1997.12.26 {1 P} | article, COLOR |
| AnimeV April 1998, 1998.02.25 {2 P} | Dynagiga article, MONO |
| Animedia April 1998, 1998.03.10 {1/2 P} | event report, COLOR |
| Ani Raji Grand Prix 20, 1999.06.26 {4+1/2 P} | articles, COLOR |
| Card Captor Sakura Complete Book, 1999.07.31 {1/2 P} | interview, MONO |
| Voice Radimage 2, 1999.10.25 {8 P} | article, COLOR |
| Ani Raji Grand Prix 23, 1999.12.26 {1/4 P} | event report, COLOR |
| 1996.08.24 | Tokyo Game Show '96 |
| 1997.03.29 | Seiyuu Collection Bangaihen |
| 1998.01.31 | Dynagiga CD vol 1 Special Live |
| 1998.07.14 | Seiyuu Collection Bangaihen |
| 1999.07.10 | Onosaka Masaya talk event |
| 2000.01.29 | Onosaka and Ueda's talk live |
| 2000.02.12 | Seiyuu Festival Dream Power 2000 |
| 2000.08.05 | Onosaka Masaya conte live Akogareru Kimochi |