European Supporting Characters
Note: For now I'm only going to include OCs and those canon characters for whom there is something different than canon. I may go back and add other supporting characters eventually
Heroes of Paris Supporting Characters
Emilie Agreste, La Paonne
Power Source: Peacock Miraculous
Abilities: miraculous-based abilities, Guardian training
Relationships: Gabriel Agreste (husband), Adrien Agreste (son), Amelie Graham de Vanily (sister), Felix Graham de Vanily (nephew), Elisabeth (ancestor), Le Maquillon (late grandfather)
Affiliations: Asian Order of the Guardians, Agreste Mansion, Heroes of Paris, World Guardians Council
Wang Fu
Power Source: Narwhal Miraculous
Abilities: miraculous-based abilities, Guardian training
Relationships: Marianne Lenoir (love interest)
Affiliations: Asian Order of the Guardians, Agreste Mansion, Heroes of Paris
Gorilla, Goosilla
Power Source: Goose Miraculous
Abilities: miraculous-based abilities, military training
Relationships: Adrien Agreste (surrogate son)
Affiliations: Heroes of Paris, Agreste Mansion
Jeanne Legrande
Relationships: Emilie Agreste (friend), Marinette Dupain-Cheng (mentor), unnamed husband, Renee (daughter)
Affiliations: Agreste Fashion House
Ondine
Relationships: Lê Chiến Kim (boyfriend), unnamed parents
Marianne Lenoir
Abilities: cooking, cleaning
Relationships: Wang Fu (love interest)
Affiliations: Agreste Mansion
Marc Anciel
Abilities: author
Relationships: Nathaniel Kurtzberg (boyfriend)
Affiliations: Ladybug comic book
Alain
Abilities: Guardian in training
Relationships: unnamed parents
Affiliations: Agreste Mansion, Asian Order of the Guardians
Marco Barreda
Relationships: Julia Barreda (mother), Pablo Barreda (father), Lise Duval (nanny)
Affiliations: Agreste Mansion
Jagged Stone, Guitar Hero
Power Source: amplifier designed by Max and Nino
Abilities: super-loud guitar
Relationships: Penny Rolling (love interest), M. Damocles (friend)
Superhero Liaison Department
Because of the Lynchpin's success in compromising the Paris Police Prefecture's regular departments through bribery, blackmail, and outright threats, the Mayor of Paris and Prefect of Police elevated Captain Roger Raincomprix to a new Prefect position as the head of the new top-secret Superhero Liaison Department. This group of officers, handpicked by Prefect Raincomprix after thorough evaluation by the Heroes of Paris, responds to super-powered threats to law and order, and assists the Heroes of Paris in their ongoing struggle against the Lynchpin's criminal organization.
Lt. Luc Ramus
Position: Field Leader
Power Source: prosthetic arm designed by Max
Abilities: police training, energy cannon in prosthetic
Sgt. Madeleine de Gouges
Power Source: unknown
Abilities: police training, enhanced strength and durability, adept at close-quarters combat
Officer Raymond Luron
Abilities: police training
Officer François Roux
Abilities: police training
Officer Daniel Moreau
Abilities: police training
Officer Jack Wilson
Abilities: police training, military training, expert sniper
Sergeant Niki Girardot
Position: Night Sergeant
Abilities: police training
Theo Vernant
Position: Lab Technician
Abilities: genius intellect
Relationships: unnamed wife
Élodie Carré
Position: Dispatcher
Mathieu Bloch
Position: Dispatcher
Prefect Roger Raincomprix
Position: Department Prefect
Relationships: Irene Raincomprix (wife), Sabrina Raincomprix (daughter)
Other European Supporting Characters
Claire Makarova
Power Source: formerly Dove Miraculous
Abilities: light magic
Relationships: Mira Makarova (daughter)
Location: Russia