The animation company, Studio Kane, and the character, Kane the Umbral God, were both named after the Series Creator's task-trained assistance dog who saved her life in 2019; the year OUTLIER was first conceptualized.
Aside from any narrative significance, the O'tovian markings (Elven facial tattoos) featured on the main protagonist, Lucian Oren Lacer, were designed as one (1) line down his chin and six (6) dots across his cheeks, purposefully referencing the Series Creator's assistance dog's birthday: November 16th (one-six). This is also Lucian's canonical birthday mentioned within the series.
Aariz Ozanne's love for sweets wasn't originally in the scripts - it was inspired by his Voice Actor's real-life quirk! During a casual grocery run, the Series Creator noticed his habit of overfilling the cart with candy and junk food despite being in-shape. The amusing contrast sparked the idea to give Aariz the same trait, making his indulgence in sweets and constant snacking a fun and unexpected layer to his character.
While OUTLIER never explicitly labels Lucian Lacer's condition, his character is carefully written to reflect traits of Borderline Personality Disorder (BPD). His struggles with emotional regulation, intense relationships, impulsivity, self-destructive behaviors, and deep fear of abandonment were thoughtfully developed with the consultation of mental health professionals to ensure an accurate and respectful portrayal.