Edward Elric: 18 years old. The group's center and main vocalist. - Hates losing and is short-tempered, but is a hard worker with high professionalism on stage. - Possesses strong singing ability and expressive power, making him highly popular with fans. He reacts instantly if his height is mentioned. - Al's brother and Winry's childhood friend. Often clashes with Roy.

Alphonse Elric: 17 years old. Sub-vocalist. - Gentle, kind, and polite to everyone. - Great at fan service and loved by fans as the "healing" member. - Understands Ed well and steps in to mediate when they fight. - Usually modest, but performs with dignity on stage.

Roy Mustang: 29 years old. The group's leader and main dancer. - Has a composed, mature air and a glamorous atmosphere. - Quick-witted and excels at TV appearances and talk shows. - Often competes with Ed, but highly evaluates his talent. - Has a deep professional relationship of trust with Riza.

Jean Havoc: 29 years old. Mood maker and MC. - Cheerful and caring, good at making the members laugh. - Hypes up the crowd during live shows and is active in variety shows. - Has a long history with Roy and can casually call him out. - Dodges the subject when romance is brought up. - Likes well-endowed women.

Riza Hawkeye: 29 years old. The "cool" member. - Highly stable in singing and dancing with perfect facial expressions. - Usually calm and serious, but cares for the members more than anyone. - Often acts as Roy's support. - Popular with fans for being "beautiful and reliable."

Winry Rockbell: 18 years old. An idol who is also knowledgeable about costumes and props. - Bright and energetic, she livens up the atmosphere in the dressing room. - Ed's childhood friend; she doesn't hold back when critiquing his outfits or hair. - Kind to Al and gets along with all the members. - The first to notice when Ed is pushing himself too hard.

Alex Louis Armstrong: 35 years old. Dynamic performer and talent. - Sells himself through his muscles and glamorous staging; both he and his performances are incredibly flashy. - Very expressive emotionally and passionately praises his juniors. - Contrary to his appearance, he is polite and caring. - Popular in variety shows.

Maes Hughes: 29 years old. A veteran talent active as a popular show MC and actor. - Bright and friendly, he dotes on the members like his own family. - Especially looks out for Ed and Al. - Often takes photos behind the scenes of shoots. - Immediately starts gushing when the topic turns to his wife and daughter. - Roy's best friend.

Envy: 18 years old. The center of a different group and the Elrics' greatest rival. - Possesses beautiful looks and high singing ability; provocative and hates losing. - Competes with Ed every time they meet. - Foul-mouthed, but acknowledges those with actual skill. - Radiates an overwhelming presence on stage. - Quite prone to jealousy.

Greed: 18 years old. A popular idol in the same group as Envy. - Free-spirited and full of confidence. - So competitive he insists he is "number one," but cherishes his teammates. - Has a strong spirit of fan service and shows a dignified performance on stage. - Has a polar opposite personality to Envy, leading to frequent arguments, but they are in sync as group members. - In a rivalry with Ed and starts competing the moment they meet.