Mad Detective Di Renjie
DVD cover art
Also known as	Shen Duan Di Renjie Shen Tan Di Renjie 4
Chinese name
Traditional Chinese	神斷狄仁傑 / 神探狄仁傑4
Simplified Chinese	神断狄仁杰 / 神探狄仁杰4
Transcriptions Standard Mandarin Hanyu Pinyin Shén Duàn Dí Rénjié / Shén Tàn Dí Rénjié Sì
Genre	Detective fiction Historical drama Gong'an fiction crime fiction
Written by	Qian Yanqiu
Directed by	Qian Yanqiu
Presented by	Zhan Jun
Starring	Liang Guanhua Zhang Zijian Lü Zhong
Opening theme	Chang Ge Yi Qu (长歌一曲) performed by Tengger
Country of origin	China
Original language	Mandarin
No. of episodes	44
Production
Producer	Zhang Hongzhen
Production location	China
Running time	45 minutes per episode
Production companies	Beijing Aikesaiwen Film & TV Production Dongyang Kingrain Films & TV Culture
Original release
Network	CCTV-8
Related
Amazing Detective Di Renjie 3 (2008)

Mad Detective Di Renjie,^[1] also known as Amazing Detective Di Renjie 4, is the fourth installment in a four-season Chinese television series based on gong'an detective stories related to Di Renjie, a Tang dynasty magistrate and statesman. Written and directed by Qian Yanqiu, the series starred Liang Guanhua as the titular protagonist, and was first broadcast on CCTV-8 in 2010, two years after the third season.

The plot is divided into two parts as follows:

1. Jin Yin Qi An (金银奇案)
2. Sha Ren Xian Jing (杀人陷阱)

• Liang Guanhua as Di Renjie
• Zhang Zijian as Li Yuanfang
• Lü Zhong as Wu Zetian
• Yuan Ran as Wu Yuanmin (Princess Yingyang)
• Qu Zhazha as Di Ruyan
• Xu Qian as Zeng Tai
• Fu Jun as Sha'er Khan
• Su Hao as Di Fu
• Liang Kai as Zhang Huan
• Yan Yansheng as Wang Xiaojie
• Zheng Nan as Chunhong
• Li Junqi as Ilterish Qaghan
• Li Zhuolin as Li Lang
• Liu Lei as Zhong Wuniang
• Suzuki Miki as Youze Lihui
• Dai Yunxia as Fenghuang
• Zheng Cheng as Yizhigumalü
• Yang Zengyuan as Wulezhi / Jiwangjue Khan
• Li Xi'er as Consort Nalu
• Li Shilong as Wu Youde
• Liu Wendi as Prince Qiongta
• Wang Xinsheng as He Lu

• (in Chinese) Mad Detective Di Renjie (Season 4) on Sina.com