- Acting for Two:
- Ritsu Takarada and Jun Samukawa, as well as the younger Shu Ouma, are voiced by Minami Tsuda.
- The younger Gai Tsutsugami and Miyabi Herikawa are both voiced by Akeno Watanabe.
- Inori Yuzuriha and Mana Ouma are both voiced by Ai Kayano in Japanese and Alexis Tipton in English.
- This makes sense later on when you find out that Inori is a clone of Mana, so it would make no sense at all if they had different voice actors.
- Anime First
- Defictionalization: Supercell assumes the name Egoist whenever Chelly is doing vocals. Yes, it's more or less a real band under an actual label.
- Fan Nickname:
- "Shoe", or more rarely "Oh my shoe!" After Episode 15, people started calling him "Shuuher" and "Hitler" as well.
- Shuuzaku and Shoelouch are also thrown about quite a bit.
- Oumiya Shurou, after getting the third Void genome, which manifests as a replacement arm, and allows him to use any Void he used previously as his own, but with his body degrading more and more. Just like Shirou's situation in Heaven's Feel.
- After her display of Endlave-slashing in Episode 18, Kerrigan the Queen of Blades for Inori.
- Souta is sometimes referred to as "Soda".
- Arisa has been called "The Whore of Babylon" due to her sleeping with one of Shu's lackeys and leading the coup d'etat against Shu.
- "F-ranks" are often shortened to "Franks", partly due to Insane Troll Logic connecting them to Anne Frank.
- Scythe-tan for the girl who wields a scythe.
- Daath/Yuu is commonly called "Darth Mugi" due to his thick eyebrows.
- He is also known as "Bushy Brows".
- "Tsugumi's Rice Cooker" for Funell.
- Non-Singing Voice: Ai Kayano voices Inori, but does not do the singing voice for her character, even though she has done songs for other anime she's been in. Instead, Chelly of Egoist does Inori's singing voice.
- No Export for You: The manga version, Lost Christmas visual novel (including the OVA), Princess of Deadpool and Dancing Endlaves did not have an overseas release.
- Relationship Voice Actor:
- What Could Have Been: Kurachi was originally planned to be half-Canadian and named "Nichelle."
Trivia / Guilty Crown