- Author Existence Failure: Much like Berserk, hasn't happened yet, but a big fear given Hagiwara's poor health and slow pace.
- Hey, It's That Voice!:
- Wendee Lee is Yoko.
- Steve Blum (Grunt in Mass Effect 2, Amon in The Legend of Korra, Zeb in Star Wars Rebels) is Gara.
- Jack Smith voices Dark Schneider
- In the original Japanese: Kazuki Yao (DS), Yuriko Fuchizaki (Luche), Tesshō Genda (Gara), Rei Sakuma (Arshes Nei, anime), Mami Koyama (Arshes Nei, CD drama), Toshihiko Seki (Kal Su, TV series), Ryo Horikawa (Kal Su, CD dramas 1-3), Shinichiro Miki (Kal su, CD drama 4), Yuka Koyama (Yoko), Ryuzaburo Otomo (Dark Priest), Masami Kikuchi (Prince Lars), Konami Yoshida (Princess Sheila), Wakana Yamazaki (Sean Ari), Yuko Kobayashi (Kai Harn), Shigeru Chiba (Diamond)