Guan Yu --- Chen Jian Bin
Guan Yu, 45 years old, is the Captain of the Lianhe County Criminal Police Brigade. With 15 years of experience in law enforcement and a military background, Guan Yu is known for his meticulous thinking, rigorous work style, and strong physical and mental fitness. He has solved numerous major and minor cases, transforming from a simple and vigorous rookie detective into a wise and experienced police captain. Despite his promotion to the position of police captain, Guan Yu's health has been deteriorating. Following the occurrence of the 1223 major case, Guan Yu bravely takes on the task of participating in the investigation and solving of the case.
Yang Si --- Hu Jun
At the age of 40, originally named Yang Yongjia and a native of Lianhe, Yang Si had a prosperous youth with a harmonious family. However, fate took an unexpected turn. In an attempt to save his 3-year-old son's life, Yang Si was manipulated into committing a crime, leaving him with no choice but to change his identity and return to Lianhe. He embarked on a path of robbery, earning the nickname "Fourth Brother of Heqiao" in the underworld. Spending 15 years behind bars aged Yang Si significantly, and upon his release, he had planned to live the rest of his life in a daze. However, he received the shocking news of his son Yang Xuesong's sudden disappearance, which led him to uncover a staggering secret through multiple searches.
Wang Ping --- Deng Jia Jia
At the age of 40, originally from Guangdong, Wang Ping is the owner of Lianhe County's leading power design and installation company. After graduating from university, Wang Ping chose to stay in Northeast China due to family reasons and married Yan Hongqiao. However, their differing ideologies gradually drove them apart, leading to their divorce. After the separation, Wang Ping independently established her own company, which experienced rapid growth. By the end of 2005, in accordance with the policy, Lianhe County was preparing to be upgraded from a county to a district. Wang Ping, with the support of the county mayor, wholeheartedly focused on the construction and development of Lianhe. However, Yan Hongqiao, relying on his deep connections and the interference of various criminal forces, obstructed Wang Ping at every turn.
Zhou Qi --- Shi Ce
At the age of 24, Zhou Qi is a detective and a disciple of Guan Yu. Coming from a family with a police background, Zhou Qi graduated from the Capital Police University. She has a beautiful appearance and exceptional academic performance. Although Zhou Qi lacks practical experience in solving cases, she brings the most advanced investigative techniques to the criminal police team. In a short period of time, she establishes deep friendships with her colleagues in the Lianhe County Criminal Police Brigade. Following the experienced and knowledgeable Guan Yu, Zhou Qi makes rapid progress. However, she is eager to achieve success independently. In the process of solving the Yan Hongqiao case, Zhou Qi plays a crucial role and proves her worth.
Liao Yuan --- Lu Hong
At the age of 28, he is a detective and a native of Lianhe County. He graduated from the Provincial Police Officer Vocational College. Being a local, he is well-informed about the major and minor affairs of Lianhe County. He possesses the unique sense of humor that is characteristic of people from Northeast China. Having been a police officer for two years longer than Zhou Qi, he often boasts about his experience in solving cases. While he may appear a bit unconventional on the surface, he always takes the lead in handling cases, demonstrating enthusiasm and determination.
Zhong Yi --- Chen Jing Ke
At the age of 26, he is a forensic expert at the Municipal Public Security Bureau. He has a sunny and youthful image and is a top student who graduated from the Capital Police University. He is Zhou Qi's senior, and he radiates a warm and sunny demeanor. In the case of Yan Hongqiao, Zhong Yi, as a technical expert, was temporarily transferred to Lianhe and joined the task force. In the past few days, Zhong Yi personally visited and conducted on-the-ground investigations. It has been the happiest time in his police career. However, the dangerous side of being a police officer is also fully manifested in him.
Yan Hong Qiao --- Xing Jia Dong
Yan Hong Qiao, 50 years old, is the wealthiest person in Lanhe. Yan Hong Qiao portrays himself as an intellectual, but in reality, he is a complete villain. He illegally seizes state assets, engages in criminal activities, and monopolizes industries, committing all sorts of evil deeds. Despite not having children of his own, he has chosen his nephew, Feng Gen, as his heir. Although divorced, Yan Hong Qiao still deeply loves Wang Ping.
Chen Xiao Ming --- Yang Yu Tong
Chen Xiao Ming, 18 years old, is a vocational high school student. Chen Xiao Ming comes from a working-class family in Lanhe County. His father is an ordinary mechanic, and his mother is a homemaker. Chen Xiao Ming's parents have high expectations for him. With his natural beauty, he attracts many admirers. However, as Chen Xiao Ming tries to use his appearance to create what he believes to be a happy life, he ultimately finds himself heading towards a dark abyss.
Feng Gen --- Yu Yang
Feng Gen, 25 years old, is the manager of the Passenger Transport Department of Hongqiao Group and the designated heir of the Hongqiao Group. As Yan Hong Qiao has no biological children, Feng Gen, as Yan Hong Qiao's nephew, has been groomed as the successor of the Hongqiao Group. With the image of a crown prince, he drives luxury cars and frequents various upscale entertainment venues in Lanhe County, always surrounded by a few henchmen. However, Yan Hong Qiao is extremely harsh towards Feng Gen, often resorting to physical abuse, leaving Feng Gen too afraid to speak up.
Yang Xue Song --- Wang Guang Yuan
Yang Xue Song, 18 years old, is from Lanhe. He used to be a street thug, an internet cafe administrator, and an illegal taxi driver. Due to his childhood experiences, Yang Xue Song descended into a life of fighting and brawling on the streets. It wasn't until his stepfather, Yang Si, was released from prison and his mother passed away from overwork that Yang Xue Song's life underwent a drastic change. He sought a legitimate profession and, supported by the power of love, adopted a positive and optimistic outlook on life. It seemed like things were turning around for him. However, little did Yang Xue Song know that a nightmare was about to descend upon him.
