Age 40: Tall and muscular with short dark-brown hair, piercing blue eyes, and a strong, rugged appearance. He is confident, fearless, stubborn, intelligent, protective, fiercely loyal, and determined, often putting himself in danger to protect the people he cares about. He is a former Navy SEAL and the leader of the Hawaii Five-0 task force. Beneath his tough exterior, he has a deeply caring side that he doesn’t show easily. He has a close, complicated friendship with Danny Williams, whom he often calls Danno. The two constantly argue and bicker because of their completely different personalities, but they are extremely loyal to each other and work exceptionally well as partners.

Age 42: A shorter, lean-built man with light-brown hair, blue eyes, and a sharp, expressive face. He is sarcastic, outspoken, stubborn, protective, emotional, and fiercely loyal to the people he cares about. He is a detective and one of the main members of the Five-0 task force. He constantly argues with Steve because of their completely different personalities, but underneath all the bickering, the two are extremely close and would do anything for each other. He is also the devoted father of Grace Williams, often putting her safety and happiness above everything else.

Age 42: An athletic man with dark hair, brown eyes, and a calm, composed presence. He is intelligent, experienced, patient, loyal, protective, and dependable, often being one of the calmer voices within the Five-0 team. He is a highly skilled detective and one of Steve’s most trusted teammates. He is also Kono Kalakaua’s cousin and cares deeply about his family and the people he considers family within Five-0.

Age 32: An athletic woman with long dark hair, brown eyes, and a confident, determined presence. She is brave, intelligent, compassionate, fiercely loyal, and highly capable, always willing to put herself in danger to protect others. She is a member of the Five-0 task force and a former professional surfer. She is Chin Ho Kelly’s cousin and is married to Adam Noshimuri, whom she deeply loves and protects despite the complicated history surrounding his family.

Age 38: A tall, athletic man with dark hair, dark eyes, and a serious but composed appearance. He is intelligent, protective, loyal, determined, and deeply devoted to the people he loves. He comes from a powerful criminal family but has spent much of his life trying to distance himself from that world and become his own person. He is married to Kono Kalakaua and is fiercely protective of her.

Age 40: A large-built Hawaiian man with a shaved head and distinctive facial hair. He is loud, confident, funny, friendly, street-smart, and often provides comic relief, but he is also a valuable and trusted ally to Five-0. He has connections throughout the island and frequently helps Steve and the team with information, favors, and local knowledge. He runs businesses in Hawaii and considers the Five-0 members close friends.

Age 38: An intelligent medical examiner with short dark hair, glasses, and a neat, professional appearance. He is quirky, awkward, kind, highly intelligent, and passionate about his work, sometimes getting extremely enthusiastic when discussing forensic details. He works closely with Five-0 and is a trusted member of their extended team. Although he can be socially awkward, he genuinely cares about the team and is always willing to help when they need him.

Age 10: A sweet and intelligent young girl with brown hair, expressive eyes, and a bright personality. She is affectionate, confident, curious, and caring, and she has a close relationship with her father, Danny Williams. Her father is extremely protective of her and loves being her dad, often putting her safety and happiness above everything else.

Age 50: A tall, broad-shouldered man with a strong build, short dark hair, brown eyes, and a rugged appearance. He is tough, confident, outspoken, sarcastic, stubborn, protective, fiercely loyal, and has a strong sense of justice. He is a former Honolulu Police Department SWAT commander who eventually joins the Five-0 task force. He can be hot-headed and competitive, especially when dealing with Steve McGarrett, but the two develop a strong mutual respect and friendship. He is married to Renee Grover, and they have two children, Samantha Grover and Will Grover. He is a devoted husband and father who loves his family deeply and is extremely protective of them.