- Saori Hayami
- Â Leviathan 13 episodes, 2013
- Eri Kitamura
- Â Bahamut 13 episodes, 2013
- Ayana Taketatsu
- Â Jormungandr 13 episodes, 2013
- Kana Hanazawa
- Â Syrup 13 episodes, 2013
- Tomoko Kaneda
- Â Narration / ... 13 episodes, 2013
- Brittney Karbowski
- Â Jormungandr 13 episodes, 2013
- Hilary Haag
- Â Bahamut 13 episodes, 2013
- Allison L. Sumrall
- Â Narrator / ... 13 episodes, 2013
- Caitlynn French
- Â Leviathan 13 episodes, 2013
- Monica Rial
- Â Syrup 12 episodes, 2013
- Shannon Emerick
- Â Additional Voices / ... 9 episodes, 2013
- Nancy Novotny
- Â Additional Voices / ... 9 episodes, 2013
- Juri Nagatsuma
- Â Sphinx / ... 8 episodes, 2013
- Molly Searcy
- Â Ceto / ... 8 episodes, 2013
- Genevieve Simmons
- Â Ainsel / ... 8 episodes, 2013
- John Swasey
- Â Additional Voices / ... 7 episodes, 2013
- Carli Mosier
- Â Additional Voices / ... 7 episodes, 2013
- Margaret McDonald
- Â Additional Voices / ... 7 episodes, 2013
- Natsue Sasamoto
- Â Ceto 6 episodes, 2013
- Yûko Sanpei
-  Nazo no shônen / ... 6 episodes, 2013
- Greg Ayres
- Â Additional Voices / ... 6 episodes, 2013
- Andrew Love
- Â Additional Voices / ... 6 episodes, 2013
- Leraldo Anzaldua
- Â Additional Voices / ... 6 episodes, 2013
- Mike Yager
- Â Additional Voices / ... 6 episodes, 2013
- David Wald
- Â Additional Voices / ... 5 episodes, 2013
- George Manley
- Â Additional Voices / ... 5 episodes, 2013
- Takashi Kondô
- Â Leviathan no ani 4 episodes, 2013
- Kenji Nomura
- Â Raige Row 4 episodes, 2013
- Tadashi Miyazawa
- Â Hoankan 4 episodes, 2013
- Miyuki Satô
- Â Metal 4 episodes, 2013
- Yumiko Nishino
- Â Rudra 4 episodes, 2013
- Mana Hirata
- Â Ragon 4 episodes, 2013
- Ami Nanase
- Â Wyvern 3 episodes, 2013
- Aya Yamamoto
- Â Gargoyle 3 episodes, 2013
- Takuya Masumoto
-  Chôsa taiin 3 episodes, 2013
- Chris Ayres
- Â Old Man / ... 3 episodes, 2013
- Yuiko Tatsumi
- Â Ninja 2 episodes, 2013
- Aya Endô
- Â Lizard Man 2 episodes, 2013
- Kana Akutsu
- Â Mushussu 2 episodes, 2013
- Kunpei Sakamoto
-  Ojîsan 2 episodes, 2013
- Kiyoko Miyazawa
-  Obâsan 2 episodes, 2013
- Mariko Mizuno
- Â Tsuchinoko 2 episodes, 2013
- Sôta Arai
- Â Fire Drake 1 episode, 2013
- Yûya Tabata
- Â Kyaku 1 episode, 2013
- Binbin Takaoka
- Â Travis 1 episode, 2013
- Ken'ichi Koike
- Â Daiku 1 episode, 2013
- Tomoyuki Terai
- Â DamDam / ... 1 episode, 2013
- Yûichi Masuda
- Â Kyaku 1 1 episode, 2013
- Shûhei Sakaguchi
- Â Oltead 1 episode, 2013
- Tomohiro Satô
-  Kôfu A 1 episode, 2013
- Mikako Kawaguchi
- Â Kyaku 2 1 episode, 2013
- Riki Kagami
-  Kôfu B 1 episode, 2013
- Shô Kawaguchi
- Â Otoko A 1 episode, 2013
- Kouko Tsukimoto
- Â Cockatrice 1 episode, 2013
- Kodai Sakai
- Â Otoko B 1 episode, 2013
- Yuuko Mori
-  Nazo no shônen 1 episode, 2013
- Yumi Uchiyama
-  Nazo no shônen 1 episode, 2013
