Qi Heng --- Wang Qian Yuan
Vice President of Qi Zhou Intermediate People's Court. Upon taking office, he took over the complex "Fishing Boat Murder Case" and discovered loopholes in the survivor's testimony, successfully identifying the real culprit behind the homicide. General Luo was investigated by Qi Heng's wife and orchestrated a major operation, causing Qi Heng's wife to disappear without a trace. With the intervention of Ma La Song, Qi Heng finally reconciled with his brother-in-law and began working together to investigate the mystery of Qi Heng's wife's disappearance.
Ma La Song --- Lan Ying Ying
Ma La Song, a criminal court judge at the Qi Zhou Intermediate People's Court. She is Qi Heng's capable assistant and successor. Not only has she assisted Qi Heng in handling numerous cases, but she has also stepped up at critical moments, providing crucial support to Qi Heng. After Qi Heng's wife went missing, Ma La Song actively assisted Qi Heng in uncovering the truth. In the end, with the joint efforts of Qi Heng and his brother-in-law, they found incriminating evidence against General Luo and brought him to justice.
Luo Huai Gong --- Yan Yi Kuan
Luo Huai Gong, the CEO of Da Gong Group. He is the main antagonist in the drama and has undeniable connections to both the Fishing Boat Case and the kidnapping of Qi Heng's wife. Luo Huai Gong happens to be a person with a powerful background and abundant wealth. In the business field, he has indeed resorted to unscrupulous means and methods, even causing loss of life. This character is highly contradictory, and nobody knows what truly goes on in his mind. All that is known is that he has squandered his father's excellent genes.
Su Han --- Zhou Zhi
Qi Heng's assistant, she assists Qi Heng in his work, and she is a highly career-driven female character. In order to investigate the murder of Wang Peng, the police called Su Han to the crime scene for a case reconstruction. The wound on Wang Peng's body was 15 centimeters deep, but during the experiment, Su Han only managed to penetrate up to 8 centimeters. It is evident that Su Han is not the real killer of Wang Peng. Instead of finding the true culprit, the experiment only served to alert the suspect and complicate the investigation.
Ou Yang He --- Dong Yan Lin
A legendary lawyer with a decade-long presence in the legal field. He believes that the car accident caused by Ding Li Li was not intentionally caused but rather an impulsive accident. Just as Lawyer Tian was preparing for Ou Yang He and Chen Shu to help minimize Ding Li Li's legal responsibility, the firm had already decided to abandon Ding Li Li. Lawyer Tian settled the legal fees owed to Ou Yang He and Chen Shu. However, Ou Yang He did not immediately withdraw but chose to continue assisting Ding Li Li.
