Taxi Driver — Characters & Cast

Initially driven by unresolved rage; later motivated by a duty to protect victims and ensure no one suffers his fate.

A former Naval Special Warfare (UDT) officer traumatized by his mother's murder, Do-gi begins as a hollow, self-destructive man living solely for revenge. Over three seasons, he evolves from a ruthless instrument of punishment into a compassionate protector who learns to value his own life and trust his found family.

Redress the failures of the justice system without losing his humanity.

CEO of Rainbow Transport and head of the Blue Bird Foundation (a non-profit supporting crime victims). Having lost his parents to a serial killer, Sung-chul walks the tightrope between public philanthropy and illegal vigilante operations. He develops from a hardened ideologue who trusts dangerous criminals into a wiser, protective leader who prioritizes his team's safety and moral integrity.

Seek justice for exploited women and safeguard her surrogate family.

A brilliant hacker who joined Rainbow Transport after her older sister committed suicide due to illegal revenge porn. Initially reclusive and deeply traumatized, Go-eun matures into a confident, proactive field operative across Seasons 2 and 3, stepping out of the surveillance van to take on active disguises.

Protect their team members and provide tangible help to victims through their engineering craft.

Lead mechanics who engineer the specialized technology and vehicles for missions. Starting as lighthearted support members, their loyalty is tested through severe physical danger, evolving them into brave field agents willing to step into the line of fire.