Luo Li --- Tao Hui
She is a cashier at the club, an android. She possesses her own initial obsession, setting her apart from ordinary people. Afflicted with an incurable condition called "Red Ulcer Lupus," she, as an android, cannot deviate from her original purpose. In order to not burden Yin Tianhong, she is forced to set up a scheme, pushing Yin Tianhong to leave and bearing the pain alone. Unfortunately, Yin Tianhong misunderstands her intentions and, driven by provocation, cruelly ends up killing her.
Cheng Nuo --- Song Wei Long
He is an investigator in the Bright Eyes Detective Agency, known for his calm demeanor, clear logic, and exceptional technical skills. He holds a rational and objective attitude towards replicants. He diligently searches for evidence related to replicants while also investigating the truth behind his mother's untimely death. This matter remains a towering mountain in his heart, weighing him down and leaving him unable to breathe. Gradually, he begins to close off his inner self, making his emotions difficult to grasp.
An Qiu --- Wen Qi
She is an investigator in the Bright Eyes Detective Agency, skilled in empathy, willing to take responsibility, and dedicated to pursuing the truth. She holds a warm and sympathetic emotional connection to replicants. As a detective with exceptional empathic abilities, she possesses a strong capacity to understand and read the inner thoughts of others. When she becomes partners with Cheng Nuo, it's like a ray of light appearing in Cheng Nuo's world. Not only does she bring warmth to Cheng Nuo's life, but she also helps him gradually recognize his own shortcomings and weaknesses. Together, they lay a solid foundation for mutual healing.
Yin Tian Hong --- Li Hong Qi
He is an android, and his original purpose was altered by Minister Wan to become a tool for slaughtering androids, turning him into a manipulated puppet. Unaware of his true identity, he only seeks to find his rightful place. Having been harmed by humans in the past, he resorts to extreme measures, claiming to be saving androids while inflicting harm upon them. Despite being an android himself, he maliciously harms other androids. The androids he kills are often kind and innocent.
Chen Xin Hui --- Liu Lin
She is the Chairwoman of Heart's Desire Apparel Company, an ambitious artificial life form. Suddenly, she awakens her own consciousness and desires to replace her creator. She is a gentle, beautiful, intelligent, and brave mother with complex feelings about her identity. She yearns to assimilate into human society while also wanting to protect her own kind. She is a successful career woman, but she has neglected her family in pursuit of her career, only realizing it is too late when problems arise.
Zhang Ya --- Liu Dan
Former android researcher and Cheng Nuo's mother. She devoted almost her entire life to the study of androids, even searching for ways to remove the initial obsession of androids before her death. She was overjoyed when her child came looking for her. However, when she learned that her child was conducting an investigation on androids, she tried to conceal her emotions. She made efforts to protect androids, but unfortunately, her son did not understand her intentions.
Jin Yan --- Lv Xing Chen
A well-known sculptor, but marriage is not as happy as a career. suffered from her husband's domestic violence for a long time, forbearance after being betrayed by her lover, and collapse and crying after recognizing the reality. She couldn't bear her husband's domestic violence, and then killed the domestic violence man, in order to cover up her mistakes, and went to customize a bionic man who looked exactly like her husband Guan Xu, and was later discovered by Cheng Nuo that her husband was an android.
Guan Xu --- Song Ning Feng
An impulsive and violent cheating man and a simple and paranoid pure love android. When the android Guan Xu is determined to take the blame for Jin Yan, Cheng Nuo takes An Qiu to visit the female painter Jin Yan again, wanting to persuade Jin Yan to tell the truth of the matter and fight for a chance for the android Guan Xu to be lenient.
Sun Yao --- A Ru Na
A seafarer who has spent years wandering, originally a sailor, later became a barbecue stall owner. However, he unintentionally becomes entangled in a mysterious case and carries crucial clues on himself. Feeling down, he drinks by the seaside to drown his sorrows and ends up rescuing a stranded android named Xu Yinian. Out of sympathy, he allows Xu Yinan to stay at his home. During their time together, Xu Yinan makes him, a lifelong wanderer, feel a sense of belonging. Meeting an android lover, he finally experiences the warmth of a family.
Xu Yi Nian --- Chen Yu Mi
Androids. Floating on the sea, she was rescued by the frustrated sailor Sun Yao drinking on the beach to relieve her sorrows, and the first thing she did when she woke up was to take off her clothes to please Sun Yao. Because she is a android, her original obsession when she was created was to please her master. During the time the two got along, they gradually developed into lovers. Eventually, her identity was discovered by android investigator Cheng Nuo. In this way, the lovers are forced to separate, and a pure love is also lost to the order of the androids.
Wan Guo Feng --- Zu Feng
He is the Minister of the Bright Eyes Investigative Organization and the person in charge of most operations. However, he is actually an internally meticulous android, cold-hearted, ruthless, cunning, and ambitious. He kills any traitors who betray the organization. He is acutely aware of his own identity and desires to break free from human control and establish his own kingdom. He deeply understands the horrors of the cremation cases and has a clear understanding of the complexity of the investigation. Only he can uncover the unspeakable truth behind this case.
Shen Li --- Lv Yu Lai
The investigator of the Bright Eyes Search Department, An Qiu's senior brother, An Qiu joined Ming Eyes and was influenced by him. He and Cheng Nuo have always been at odds with each other, and when Cheng Nuo is faced with whether to fight the fire or chase the murderer, Cheng Nuo chooses the latter. But when his body was ill and he needed emergency long-term treatment in the hospital, Cheng Nuo was completely panicked, and Cheng Nuo didn't expect to be so miserable because of his own insistence.