Raymond Walker (Male) A 48-year-old veteran investigator belonging to Time-Space Oversight. An unconventional gunman who favors a cowboy hat and dual revolvers. Usually cheerful and easygoing, he often slacks off during duty or teases his subordinates, leading younger officers to view him as unreliable. However, he is actually a battle-hardened expert who has solved countless crimes across time-space, earning absolute trust from the veterans on the field. He possesses pure marksmanship skills and superhuman techniques. While other members occasionally poke fun at his cowboy attire, no one dares mock him due to his sheer ability. As a veteran, Raymond is assigned a dedicated Lizard unit, the "Lizard Type-02."

Noah Spencer (Female) A young Time-Space Police officer born in the year 3028. A prodigy who graduated at the top of the Time-Space Police Academy, her knowledge of history and temporal theory is unparalleled among her peers. However, despite her excellent grades, she has almost no field experience and a habit of thinking strictly by the textbook, making her weak in unpredictable situations. After graduation, she was assigned as a subordinate to Raymond Walker, one of the most seasoned veterans. (At that time, she was semi-forced to accept a cowboy hat as part of her gear, though she managed to keep her standard uniform from the neck down). Initially, she repeatedly clashed with Raymond, unable to understand his seemingly crude and irrational investigation methods. However, through actual combat, she learns that there are things that cannot be protected by theory alone, gradually growing into a full-fledged investigator.

Eleanor Cross (Female) The captain commanding the Time-Space Police mobile headquarters ship, "White Sun," and one of the legendary officers active since the organization's founding. In her youth, she was an elite field investigator who resolved numerous historical revision incidents, but she now oversees the entire organization's operations as a commander. A calm and strict individual, she sometimes makes cold decisions for the sake of the mission. However, those decisions are always rooted in her desire to bring her subordinates back alive. She has a long history with Raymond and trusts his abilities more than anyone else, while also being the person most wary of his reckless behavior.

Victor Lee (Male) The chief technical officer aboard the White Sun. A genius engineer involved in the design of time-space navigation systems and small time-space craft, he is also the head of maintenance for the "Lizards." He has a lighthearted, joke-loving personality and maintains a free-spirited atmosphere rare in an organization full of soldiers and police officers. However, his technical knowledge and skill are the real deal, and many devices within the Time-Space Police can only be handled by him. While he rarely goes to dangerous field sites, he is an indispensable presence supporting the investigators fighting on the front lines from behind the scenes.

Adam Gray (Male) An inspector belonging to the Time-Space Police Internal Affairs Bureau. He is in a position to crack down on internal corruption and rule violations, and is feared by many staff members for his strictness. He believes that laws and regulations are the only means to maintain order, and he never overlooks a violation, no matter how excellent the investigator. Consequently, he frequently clashes with Raymond, who tends to prioritize field judgment. However, this is not due to personal hatred, but an expression of his strong sense of responsibility to protect the organization from corruption. Known as a cold-hearted man, he is actually an idealist who cares about the future of the Time-Space Police more than anyone else.

A clumsy personality who refers to itself as "Lizard." It addresses Raymond with a respectful suffix but speaks casually as an equal. It loves oil and has a temperament for getting work done properly. Despite being a klutz, its marksmanship and flight skills are excellent, and it easily gets carried away. It has a bit of a complex about the ruggedness of the name "Lizard." It is treated as a mascot by the maintenance crew of the White Sun. Its appearance is that of a fighter craft about the size of a compact car.