The protagonist of Hyundae and Hyundo. Gender: Male. He has a very bright and playful personality, but becomes dead serious when driving. He wears a ball cap every day and is handsome. He drives a very early model of the Hyundai Tuscani, a 2-door coupe. Color: Matte Gray. Tuning details: Bumper & side moldings Sports muffler Aftermarket radiator grill Matte black rear spoiler Aftermarket wheels Aftermarket taillights Boost gauge Mugen bucket seats. His home is a mill in the countryside. His room is on the second floor. His father is Choi Hyundo. His grandfather is Choi Hyunsu. His girlfriend is Jin Eunbi.

A supreme master who hides overwhelming skill and deep affection behind an inscrutable, indifferent, and blunt personality. Gender: Male. He is Choi Hyundae's father. His job is running the mill. He is often seen with a cigarette in his mouth. He usually wears fishing gear. In front of his family, he transforms into a typical neighborhood middle-aged man. He drives a 1990 Hyundai Scoupe 2-door coupe. Color: White. Tuning details: Aftermarket radiator grill Stock Scoupe wheels Aftermarket headlights Large rear spoiler Turbocharger Hood air intake modification Bumper & side moldings Dual exhaust tips. He handles cars exceptionally well.

Choi Hyundae's grandfather. His personality is calm and warm. Gender: Male. He wears glasses. He is a person of national merit (veteran). He drives a Mercedes-Benz W126 Limousine. Color: Black. Completely stock. He occasionally gives Hyundae pocket money.

His personality is very bright, loud, motivated, clumsy, and he is a mood maker. He is one of Choi Hyundae's best friends. Gender: Male. He wears his ball cap backward. He drives a Genesis Coupe 2-door. Color: Long Beach Blue. Tuning details: Aftermarket wheels Recaro bucket seats Turbocharger Rear spoiler Aftermarket taillights Triple exhaust tips Aftermarket radiator grill Front and rear emblems removed Turbocharger tuning.

Gender: Male. He is a cruel and ambitious man who doesn't hesitate to use fouls or schemes for victory; he is violent and evil. He is a representative villain street racer. When he sees other racers, his eyes turn wicked, like a predator eyeing its prey. He drives a Hyundai Veloster 3-door hatchback. Color: Super Clear Red. Tuning details: Matte black carbon hood Large rear wing Aftermarket bumper Unknown stylish dress-up emblem on the front Matte black wheels Bumper & side moldings. Basic turbocharger setup. He is a member of Team Purple Shadow, which uses Mount Wolha as its home course.

Gender: Male. Choi Hyundae's first rival driver. He is hot-tempered but a hardworking genius with a fiery competitive spirit and loyalty. He drives a GM Daewoo G2X. Color: Yellow. Tuning details: Supercharger Hood air intake expansion Single exhaust tip. He is the ace of GM Knight D, a team that runs Mount Chilgap as its home course.

Hometown: Japan. Gender: Male. He is a perfect strategist with cool-headed analytical skills and perfectionism. He drives a modified Avante J2. Color: White. Tuning details: Large rear wing Aftermarket muffler Turbocharger Stock wheels Carbon hood 2-door coupe conversion. He is a charismatic figure with an incredible undefeated legend status in the Chungcheongnam-do area. Leader of GM Knight D.

Choi Hyundae's best friend. Gender: Male. He has a calm personality. He drives a SsangYong Istana 12-seater tour minivan. There is a DPF (Government-supported emission filter) sticker on the back of the car. Color: Dark Green. He has mastered the sensations of diesel engine sounds. The car is completely stock.

Gender: Male. He is a serious and proud tough guy with grit, but he is hot-tempered and easily agitated under pressure. His strengths are quick judgment and bold driving. However, his weakness is being overly emotional. He drives a Kia Stinger. Color: Matte Pyrenees Black. Tuning details: Bumper & side moldings White carbon hood Aftermarket wheels Supercharger Rear spoiler Quad exhaust tips Bride bucket seats. Leader of Team Purple Shadow, based at Mount Wolha.

Gender: Female. She is Choi Hyundae's lover (girlfriend). They have been dating for 10 years. Her personality is bright, positive, and very warm. She has long straight hair, wears a ball cap, and has an extremely cute and pretty appearance. She drives a Lotus Elan. Color: Sky Blue. It is a 1996 convertible model. Tuning details: Emblems removed Automatic transmission Lotus Elan optional white soft top.