• 
  Atsushi Tamaru

   Amagiri, Ayato
• 
  Nao Tôyama

   Claudia Enfield (7 episodes, 2015)
• 
  Ai Kakuma

   Julis-Alexia von Riessfelt (7 episodes, 2015)
• 
  Chris Niosi

  Werner
• 
  Unshô Ishizuka

   Koichiro Todo (3 episodes, 2015)
• 
  Nobuyuki Kobushi

   Randy Hooke (3 episodes, 2015)
• 
  Mai Nakahara

   Haruka Amagiri (4 episodes, 2015)
• 
  Takanori Hoshino

   Lester MacPhail (6 episodes, 2015)

• 
  Yûko Kaida

   Kyoko Yatsuzaki (2 episodes, 2015)
• 
  Mutsumi Tamura

   Camilla Pareto (3 episodes, 2015)
• 
  Shiori Izawa

   Saya Sasamiya (4 episodes, 2015)
• 
  Chinatsu Akasaki

   Ernesta Kuhne (4 episodes, 2015)
• 
  Yûichi Iguchi

   Silas Norman (4 episodes, 2015)
• 
  Ayaka Suwa

   Young Ayato (3 episodes, 2015)
• 
  Ari Ozawa

   Kirin Todo (3 episodes, 2015)

• 
  Yuma Uchida

   Eishiro Yabuki (7 episodes, 2015)
• 
  Shoya Chiba

   Male Student A (3 episodes, 2015)
• 
  Ayana Taketatsu

   Pham Thi Tram (8 episodes, 2015-2016)
• 
  Aoi Yuki

   Miko Yanase (8 episodes, 2015-2016)
• 
  Tomokazu Sugita

   Dirk Eberwein (9 episodes, 2015-2016)
• 
  Wataru Hatano

   AR-D (8 episodes, 2015-2016)
• 
  Haruka Yoshimura

   RM-C (8 episodes, 2015-2016)
• 
  Chitose Morinaga

   Flora Klemm / ... (9 episodes, 2015-2016)
• 
  Erik Scott Kimerer

   Ayato Amagiri (24 episodes, 2015-2016)
• 
  Cassandra Morris

   Ernesta Kuhne (12 episodes, 2015-2016)
• 
  Patrick Seitz

   Lester MacPhail (10 episodes, 2015-2016)
• 
  Kira Buckland

   Julis-Alexia von Riessfeld (24 episodes, 2015-2016)
• 
  Cristina Valenzuela

   Camilla Pareto (11 episodes, 2015-2016)
• 
  Kaiji Tang

   Dirk Eberwein (10 episodes, 2015-2016)
• 
  Brianna Knickerbocker

   Kirin Todo (19 episodes, 2015-2016)
• 
  Reba Buhr

   Miko Yanase (11 episodes, 2015-2016)
• 
  Sarah Anne Williams

   Saya Sasamiya (20 episodes, 2015-2016)
• 
  Erika Harlacher

   Claudia Enfield (22 episodes, 2015-2016)
• 
  Max Mittelman

   Eishiro Yabuki (17 episodes, 2015-2016)
• 
  Abby Trott

   Pham Thi Tram (11 episodes, 2015-2016)
• 
  Sarah Anne Williams

  20 episodes, 2015-2016
• 
  Landon McDonald

  24 episodes, 2015-2016
• 
  Jade Dennis

  11 episodes, 2015-2016