| Seiyuu | Role |
| Takehito Koyasu | Shin Kazama |
| Shinichirou Miki | Makoto Shinjou |
| Chikao Ohtsuka | McCoy Jii-san |
| Shigenori Souya | Gustav |
| Masaya Takatsuka | Greg Gates |
| Sanae Kobayashi | Kitori |
| Ryo Hirohashi | Kim |
| Hiroki Takahashi | Saki Vashtar |
| Tomokazu Seki | Mickey Simon |
| Hikaru Midorikawa | Satoru Kanzaki (Episode 4, 6, 11, 12) |
| Yousuke Akimoto | Boris (Episode 2) |
| Takashi Nagasako | Randy (Episode 3) |
| Kihachirou Uemura | Leon (Episode 9) |
| Kimiko Saitou | Alicia (Episode 2, 6, 8, 9) |
| Kenji Nomura | Hans (Episode 10) |
| Nobuyuki Hiyama | Patrick (Episode 10) |
| Kazunari Tanaka | Rally (Episode 7) |
| Satsuki Yukino | Ryouko (Episode 4, 6, 11, 12) |
| Youji Ueda | Smiley (Episode 8) |