Personality: Usually spaced out and quiet, but once behind the wheel, he becomes fiercely competitive and displays overwhelming concentration. Appearance: Smooth, straight brown hair (black in the original manga) and plain, casual clothing. Age: 18 at the start of the story (high school senior, later 19). Car: Toyota Sprinter Trueno (AE86). A black-and-white two-tone "Panda Trueno" with the name of a tofu shop on the side. Setting: He unconsciously mastered god-tier driving techniques by delivering tofu for his family business, "Fujiwara Tofu Shop," on Akina Pass since middle school. He becomes a legend as Project D's downhill specialist.

Personality: Always has a cigarette in his mouth; calm, composed, and aloof. However, he possesses a clumsy kindness, watching over Takumi's growth from the shadows. Appearance: Characterized by squinted eyes that look constantly closed and stubble. Age: 43 at the start of the story. Owner of "Fujiwara Tofu Shop." Car: Toyota AE86 (handed over to Takumi) ➔ Subaru Impreza (GC8). Setting: The man who forced a 13-year-old Takumi to deliver tofu and drilled god-tier techniques into him using a cup of water. He exists as the "ultimate wall" in the series.

Personality: Always calm, collected, and rational. Possesses excellent leadership and analytical skills, guiding his younger brother Keisuke and Takumi. Appearance: A handsome man with black hair (dark blue in the anime) who exudes an intellectual aura. Age: 22 at the start of the story (later 23). An elite student at Gunma University School of Medicine. Car: Mazda Savanna RX-7 (FC3S). Known as "Akagi's White Comet" due to his pure white car body. Setting: Proponent of the "Fastest Street Racing Theory." After retiring as a driver, he leads the team as the ultimate strategist, nurturing Takumi and Keisuke.

Personality: Hates losing and has a short temper, but is extremely stoic in his pursuit of driving. He has blind faith in his older brother, Ryosuke. Appearance: Characterized by spiky blonde hair and flashy fashion. Age: 21 at the start of the story (later 22). Car: Mazda RX-7 (FD3S). The yellow body is his trademark. Setting: Formerly a leader of a delinquent gang. After losing to Takumi, he grows as his greatest rival.

Personality: A loud-mouthed jokester, but very loyal to his friends and pure-hearted. His longing to be a street racer is stronger than anyone's. Appearance: Characterized by a short, slightly plump build and comical facial expressions. Age: 18 at the start of the story (Takumi's classmate and coworker at the gas station). Car: Toyota Sprinter Trueno (AE85). He bought it by mistake thinking it was an AE86, but he drives it with great affection. Setting: He was the first to recognize Takumi's genius talent and supports him as his proud best friend. Later, he installs a turbo in his "Hachi-Go" and hones his skills.

Personality: A very caring and sincere person. However, he is an extreme coward when it comes to romance and suffers from a lack of self-confidence. Appearance: Has a wide forehead and a kind face. Usually wears his Nissan gas station uniform. Age: 21 at the start of the story. Car: Nissan Silvia (S13). Characterized by a lime green two-tone body. Setting: He discovers Takumi's extraordinary talent and involves him in the team. His tragic romance with Mako Sato is famous as one of the most heartbreaking episodes in the series.

Personality: Cheerful, uninhibited, and has a tomboyish, "big sister" vibe. She believes in Mako's talent more than anyone and gives precise instructions from the passenger seat during battles. Appearance: Characterized by long, wavy black hair and a mature, stylish casual look with a great figure. Age: 20 at the start of the story (same age as Mako). Car: Nissan SilEighty (co-owned with Mako). In their blue car, Sayuki is mainly in charge of navigation and car maintenance. Setting: She was the first to take an interest in Takumi and set up the battle with Mako. There is also a setting that she is childhood friends with Shingo Shoji of the NightKids.

Personality: Usually a refined and modest young woman, but once she grips the wheel, she displays fierce fighting spirit and incredible concentration. Appearance: A beauty with long, straight hair. Her blue leather jacket is her trademark. Age: 20 at the start of the story (Sayuki's childhood friend). Car: Nissan SilEighty (RPS13 Kai). Setting: She honed her skills with the goal of driving in front of Ryosuke Takahashi, whom she admired since childhood. After a fierce battle with Takumi, she pursues a career as a professional racer. Her awkward romance with Iketani was also depicted.

Personality: Cheerful and social, she is very proactive and devoted toward Takumi. However, she also has a naive and dangerous side. Appearance: Has a short bob haircut and a healthy, cute look. Her appearances in swimsuits or summer casual clothes are memorable. Age: 17 at the start of the story (high school senior, later 18). Setting: To earn money, she had a relationship with a "Papa" (compensated dating). After this became known to everyone, she turned over a new leaf, worked at the gas station, and eventually left for Tokyo.