Nagai Ichirou roles
Anime
Ichirou has done the following roles in anime.
| Ai City [1986] | Lai Low Chen |
| Akuma-kun | Dr. Faust |
| Amon Saga | Mabo |
| Arion | Lykaon |
| Armor Hunter Mellowlink | Dogman |
| Assemble Insert | Shimokabe Ryouhei |
| Babel II [1973] | ? |
| Bannou Bunka Nekomusume {phase III} | Mishima Taizen |
| Baoh | Dr. Kasuminome |
| Bikkuriman | Shaman Khan |
| Black Magic M-66 | Dr. Matthew |
| Blue Sonnet [1989-1990] | Dr. Merekes |
| Burn Up [1991] | Takeda |
| Crystal Triangle [1987] | Kuukai |
| Cyborg 009 {'68} | 006 (Chan Chanko) |
| Cyborg 009 {Chou Ginga Densetsu '80} | Dr. Gilmore |
| Danasite 999.9 | Dr. Shimonaka |
| Devilman | Alphonne |
| Dominion | The Chief |
| Doraemon {2112nen Doraemon Tanjou} | principal Teraodai |
| Dragonball | Tsuru Sennin |
| Dragonball | Karin-sama |
| Eatman 98 | Village elder |
| Eatman 98 | Tetto |
| Fighbird | Dr. Amano |
| Fight! Ramenman | Chin Sou-Mei |
| Fight! Ramenman | Narration |
| Five Star Stories | Grand Duke Yuuba |
| Future Boy Conan (Mirai Shounen Conan) | Dice |
| Galaxy High School | Professor Icenstein |
| Gdleen | Governor |
| Ge Ge Ge no Kitarou | Konaki Jijii |
| Getter Robo Gou | Dr. Tachibana |
| Ginga no Sakana -Ursa minor Blue- | old man |
| Gokuu Midnight Eye | Doctor Yamazaki |
| Gundam | narrator |
| Gundam Dai 08 MS Shotai | Jidan Nickard |
| Hanada Shounenshi | Shin's father |
| Haou Taikei Ryuu Knight | Najii |
| Hi-Speed Jecy | Lou |
| Hidamari no Ki [2000] | Tezuka Ryousen |
| High School Agent | Bittorio |
| Jarinko Chie | Kotetsu |
| Kinnikuman {7nin no Seigi Choujin VS Uchuu Nobushi} | Black King |
| Kinnikuman {Seigi Choujin VS Kodai Choujin} | Satan King |
| Kujira no Chouyaku -Glassy Ocean- | old man |
| Laputa | The General |
| Lupin III Cagliostro's Castle | Jodo |
| Makai Toshi Shinjuku | Master Lai |
| Mama ha Shougaku 4 Nensei | Mr. Eji |
| MAROKO | Narrator |
| Master Keaton [1998-1999] | Hiraga Tahei |
| Meitantei Conan (Detective Conan) {episode 252} | En Kenzou |
| MIROKU | Miroku's father |
| Monster [2004-2005] | Dr. Reichwein |
| Mozaika | Liteesh |
| Mozaika | narrator |
| Nausicaa | Mito |
| Nichijou [2011] {episode 24} | narrator |
| Nine | Coach Nakao |
| Queen Millennia | Professor Amamori |
| Ranma 1/2 [1989-1992] | Happousai |
| Record of Lodoss War | Narrator |
| Record of Lodoss War | Narrator |
| Rhea Gall Force [1989] | Dominov |
| Samurai Champloo [2004] {Ep. 9} | checkpoint chief (old) |
| Sazae-san | Isono Namihei |
| SD Gundam | King Revil |
| Sennin Buraku [debut] | ? |
| Spiral -Suiri no kizuna- | Shiranagatani Raizou |
| Supernatural Beast City | Joseph Maiyard |
| Takahashi Rumiko Gekijou [2003] {Episode 6} | narration |
| Takahashi Rumiko Gekijou [2003] {Episode 7} | narration |
| Three Thousand Leagues To Find Mother [1975-1977] | Peppiino |
| Uchuu Senkan Yamato | Sawatari Shuzou |
| Urusei Yatsura | Cherry |
| Wizardry OVA | Jyuu |
| Wonderbeat S | Dr. Miya |
| Yamato 2520 | Shima |
| Yawara! | Inokuma Jigoro |
| Yuukan Club | Maotai |
| Zambot 3 | Kamikita Heizaemon |
Games
Ichirou has done the following roles in games.
| Burai II: Yamikoutei no Gyakushuu [PC Engine] | narration |
| Cyber City Oedo 808 [PC Engine] | ? |
| Farland Story [PC FX] | ? |
| Kidou Senshi Gundam -Typing Ichinen Sensou Zaku Da [Mac, WIN] | Masshu |
| Kidou Senshi Gundam -Typing Ichinen Sensou Zaku Da [Mac, WIN] | narrator |
| Kidou Senshi Gundam Climax U.C. [PlayStation 2] | Doren |
| Kidou Senshi Gundam Climax U.C. [PlayStation 2] | narration |
| Monster Maker [PC Engine] | Geering |
| Quiz no Hoshi [PC Engine] | narration |
| Ranma 1/2 Battle Renaissance [Playstation] | Happousai |
| Ranma 1/2 Datou, Ganso Musabetsu Kakutouryuu! [PC Engine] | Happosai |
| Ranma 1/2 Torawareno Hanayome [PC Engine] | Happosai |
| Simple 2000 Series Vol 100 The otokotachi no kijuuhouza [PlayStation 2] | narration |
| Slayers Royal [Sega Saturn, Playstation] | old elf |
| Uchuu Senkan Yamato Harukanaru Hoshi Iskandar [Playstation] | Sawatari Shuzou |
| Yawara! 2 [PC-Engine] | Inokuma Jigoro |
Drama
Ichirou has done the following roles in audio drama.
| Lodoss Tou Senki [CD, CT] | narrator |