Detective L

Director

• 
  Deng Ke

Music Editor

• 
  Emanuele Frusi

Producer

• 
  Li Er Yun

Screenwriter

• 
  Lu Xuan

Main Role

• 
  Bai Yu

  Luo Fei

  Main Role
• 
  Una You

  Qin Xiao Man

  Main Role

Support Role

• 
  Ji Chen

  Ben Jie Ming

  Support Role
• 
  He Yong Sheng

  Savoy

  Support Role
• 
  Chen Meng Qi

  Huo Wen Si

  Support Role
• 
  Zhang Yi

  Ye Chang Qing

  Support Role
• 
  Vicki Dong

  Wang Su Su

  Support Role

Guest Role

• 
  Zhou Zhong He

  "Captain"

  Guest Role
• 
  Wan Peng

  [Luo Fei's sister]

  Guest Role
• 
  Tang Qun

  Madame Ma

  Guest Role
• 
  Wei Zi Xin

  Ma Bo Yuan

  Guest Role
• 
  Xi Lu

  Ruan Meng Zhu

  Guest Role
• 
  Zhang Xiang

  Wu Qing Feng

  Guest Role
• 
  Xu Zi Yin

  A Xiang (Ep. 3)

  Guest Role
• 
  Bi Hui

  Han Wei Wei (Ep. 4-6)

  Guest Role
• 
  Zhu Feng

  Lu Xiang Dong (Ep. 4-6)

  Guest Role
• 
  Mei Nian Jia

  Chen Han Liang (Ep. 4-6)

  Guest Role
• 
  He Qiang

  Tang Ji Yu (Ep. 4-6)

  Guest Role
• 
  Mei Ling Zhen

  Madame Tang (Ep. 4-6)

  Guest Role
• 
  Zhao Jing

  Chen Hui Yan (Ep. 5)

  Guest Role
• 
  Xiang Ling

  Zhao Su (Ep. 5)

  Guest Role
• 
  Wen Dong Jun

  Zheng Yi Xiong (Ep. 5-6)

  Guest Role
• 
  Wang Cheng

  Xiao Lu (Ep. 7-9)

  Guest Role
• 
  Zhao Zheng Yang

  Xiao Lang (Ep. 7-9)

  Guest Role
• 
  Li Hong Lei

  Guan Er (Ep. 7-9)

  Guest Role
• 
  Qu Gang

  Uncle Cao (Ep. 7-9)

  Guest Role
• 
  Yi Yong Ming

  Guo Rong (Ep. 7-9)

  Guest Role
• 
  Li Jia Wen

  Xia Lu Na (Ep. 8-9)

  Guest Role
• 
  Wen Chun Di

  Xiao Lu [Young] (Ep. 9)

  Guest Role
• 
  Quan Tong

  Wang Jia De (Ep. 10-12)

  Guest Role
• 
  Zhang Jing Tong

  Qian Qi Yue (Ep. 10-12)

  Guest Role
• 
  Jenny Zhang

  Sun Qi Xue (Ep. 10-12)

  Guest Role
• 
  Wang Xiao Qi

  Sister Qi (Ep. 10-12)

  Guest Role
• 
  Tian Miao

  Madame Qi (Ep. 12)

  Guest Role
• 
  Han Ye

  Qi Yun (Ep. 12)

  Guest Role
• 
  Tao Li Xin

  Wang Ji Fu (Ep. 13-15)

  Guest Role
• 
  Lily Wang

  Mrs. Wang (Ep. 13-15)

  Guest Role
• 
  Zhang Bao Long

  Zhao Da Tong (Ep. 13-15)

  Guest Role
• 
  Li Yi Ze

  Zheng Yuan (Ep. 13-15)

  Guest Role
• 
  Yan Yi Min

  Chen Shun Chang

  Guest Role
• 
  Wu He Lun

  Du Jin Bao (Ep. 14-15)

  Guest Role
• 
  Wang Kan

  Jin Cha Li (Ep. 14-15)

  Guest Role
• 
  Ji Xiang

  Mr. Zhao (Ep. 16)

  Guest Role
• 
  Zhang Jing

  Mrs. Ouyang (Ep. 16, 18)

  Guest Role
• 
  Zhao Cheng Shun

  Ouyang Xun (Ep. 16-18)

  Guest Role
• 
  Gu Xin

  Han Ning Sheng (Ep. 16-18)

  Guest Role
• 
  Xu Wei

  Wang Xue Ru / An Ping (Ep. 16-18)

  Guest Role
• 
  Shi Dan Jiang

  Lin Zhong Heng (Ep. 16-18)

  Guest Role
• 
  Guo Qiu Cheng

  Zhang Cha Li | Zhang Da Shan (Ep. 19-21)

  Guest Role
• 
  Zhang Jin Ming

  Lin Zai Zhong (Ep. 19-21)

  Guest Role
• 
  Yu Xiao Dong

  Chen Shuang (Ep. 19-21)

  Guest Role
• 
  Zhou Xing Hua

  Housekeeper He (Ep. 19-21)

  Guest Role
• 
  Chen Lai Meng

  Liu Ming Xu

  Guest Role
• 
  Wu Xuan

  Mr. Huang [Security guards' chief] (Ep. 20)

  Guest Role
• 
  Xi Yu Li

  Lin Yuan (Ep. 20-21)

  Guest Role
• 
  Xiu Qing

  Jin Bu Bai (Ep. 22-24)

  Guest Role
• 
  Wang Jin Ze

  Wei Feng (Ep. 22-24)

  Guest Role
• 
  Pan Mei Ye

  Fu Yuan Yuan (Ep. 22-24)

  Guest Role
• 
  Li Bin

  Lu Wen De (Ep. 22-24)

  Guest Role
• 
  Sun Rong

  Chen [Prison director] (Ep. 22-24)

  Guest Role
• 
  Luo Lei

  Doctor Hao (Ep. 22-24)

  Guest Role
• 
  Shi Qiang

  Doctor Ouyang (Ep. 23-24)

  Guest Role

Voice Actor

• 
  Li Shi Meng

  Qi Yun

  Voice Actor
• 
  Xuan Xiao Ming

  Sha Wei

  Voice Actor