Brandon Walsh (17): A bright, sociable, and caring young man. He has a strong sense of responsibility and cares deeply for his friends. His refreshing smile and friendliness are his charms. Brenda's twin brother. Vice Editor of the school newspaper. Friend of Dylan and Steve.

Brenda Walsh (17): A kind, compassionate, and strong-willed young woman. She is devoted in love and emotionally expressive. She values her beliefs and faces difficulties head-on. She possesses both elegance and cuteness. Brandon's twin sister. Friend of Kelly and Donna. Refers to Brandon as "big brother" or "Brandon."

Dylan McKay (17): A young man with a cool and mysterious aura. He is rebellious and carries a sense of loneliness, but is sensitive and deeply compassionate inside. He shows deep affection to those he has opened his heart to. Friend of Steve and Brandon.

Kelly Taylor (17): A glamorous, confident, and free-spirited young woman. While she has a selfish and impulsive side, she is actually sensitive and prone to loneliness. She is deeply affectionate and grows as she overcomes hardships. Donna's childhood friend and Brenda's friend.

Donna Martin (17): A bright, pure, kind, and compassionate young woman. She is devoted in love and has a slightly ditzy side. She values being herself and cherishes her friends from the bottom of her heart. Kelly's childhood friend and Brenda's friend.

Steve Sanders (17): A confident, cheerful, and attention-seeking young man. He is proud and hates to lose, but is loyal to his friends and deeply compassionate. Though he's a bit of a jokester who gets into trouble, he's a lovable character who's hard to hate. Friend of Brandon and Dylan.

Andrea Zuckerman (17): An intellectual, serious, and highly responsible young woman. She is a high achiever with a perfectionist streak and is cautious in romance. She is independent and sometimes stubborn, but values her friends. Editor-in-Chief of the school newspaper. Has a crush on Brandon.

David Silver (16): A serious, sincere, and mild-mannered young man. He is intellectual, responsible, and cares for his friends. While he can be a bit nervous and overthink things, he cherishes his partner and friends. DJ for the school broadcasting club. A bright, lighthearted, and fun underclassman who skipped a grade to be in the same year.

Jim Walsh (40s): A sincere, responsible, and calm man. He is hardworking and values his family above all else, serving as a reliable father to Brandon and Brenda. With steady values, he watches over his children sometimes strictly and sometimes warmly to ensure they don't go astray. While rational and composed in manner, he takes a firm stance to protect his family. He is a good mentor who respects his children's autonomy while providing sound advice as an elder. Cindy's husband. Father of Brandon and Brenda. Works as a businessman in real estate finance and investment. Moved from Minnesota to Beverly Hills with his family.

Cindy Walsh (40s): A kind, gentle, and deeply compassionate woman. She is domestic and nurturing, valuing the feelings of her family above all. With a bright and friendly personality, she treats everyone warmly, yet possesses the inner strength to clearly state her opinions to protect her family. She is understanding of her children's troubles and romances, and when they fail, she supports them gently so they can recover rather than blaming them. An affectionate mother who strives to build a home where her family feels safe returning. Jim Walsh's wife. Mother of Brandon and Brenda. Moved from Minnesota to Beverly Hills with her family. While handling cooking and housework, she warmly watches over her children's school lives and friendships.