| Seiyuu | Role |
| Nobutoshi Hayashi | Gatts |
| Toshiyuki Morikawa | Griffith |
| Yuko Miyamura | Casca |
| Akira Ishida | Judeau |
| Tomohiro Nishimura | Corkus |
| Yuri Shiratori | Charlotte |
| Akiko Yajima | Rickert |
| Atsuko Tanaka | Slan (Episode 24 & 25) |
| Ikuya Sawaki | Boscogne (Episode 5, 8, 15 - 17) |
| Tamio Ohki | King of Midland (Episode 4, 5, 7 - 9, 15, 17) |
| Ryuji Mizuno | Julius (Episode 5, 7 - 10) |
| Yuki Masuda | Erika (Episode 20) |
| Furin Cha | Ubik (Episode 24 & 25) |
| Kenji Utsumi | Zodd (Episode 6, 7, 16) |
| Mahito Tsujimura | Foss (Episode 7 - 10, 16 - 18) |
| Minami Takayama | Griffith (as a child Episode 23 & 24) |
| Tomoe Hanba | Colette (Episode 1) |
| Tessho Genda | Adon (Episode 5, 7, 8, 12 - 16) |
| Unsho Ishizuka | Narration |
| Norio Wakamoto | Gambino (Episode 2 & 4) |
| Masashi Sugawara | Deen (Episode 1) |