Based on documented media for *Zannen na Ikimono Jiten*, the character identified solely as "Leroy's mother" appears exclusively within the film's Australia segment, "Leroy no Home Tree." Official sources, including cast listings, confirm Noriko Hidaka provides the character's voice. No details regarding her background story, personality traits, narrative role, relationships, character development, or actions exist within the available information. Beyond her nominal identification and voice actor credit, her specific characteristics remain unidentified.