- Title: 双天至尊 / Shuang Tian Zhi Zun
- English title: The Unbeatables
- Genre: Gambling, drama, romance
- Episodes: 20
- Broadcast network: MediaCorp Ch 8
- Broadcast year: 1993
- Air time: Weekdays
- Opening theme song: 沉默的羔羊 by 赵传
- Ending theme song: 爱要怎么说出口 by 赵传
King of Gamblers, Yan Kun, and King of Deceptions, Long Tingguang, both set their eyes on Coral Island – an undeveloped empty island- for their future casino landmark. Through underhand method, Tingguang won the gambling match with Yan Kun and acquired the right of the island. He forced Yan Kun to blind his own eyes, force Yan's wife to commit suicide and left Yan's five-year old son an orphan.
18 years later, Yan's son grew up under disguised name, Lin Jianfei. His happy go-lucky attitude is a cover for his ultimate goal: to avenge his parents' misfortunate. His high gambling skill drew Tingguang's enemy, Qiu Huaifeng. She hired Yan Fei to her family's casino and Yan Fei used this opportunity to prefect his gambling skill.
Jianfei and his friend, Xiangnan, were arrested for illegal gambling by mistake by policewoman, Luo Qifang. Qifang and her sister, Wenxin turn out to be his neighbor. Over time, the once bickering partners become romantically linked. Just as the romance blossom, Qifang discovers that she is actually Long Jiajia - the long lost daughter of Long Tingguang, Yan Fei's arch enemy.
- Li Nanxing as Lin Yan Fei (言飞) / Lin Jianfei (林建飞)
- Zoe Tay as Luo Qi Fang (罗其芳) / Long Jia Jia (龙嘉嘉)
- Chen Shu Cheng (陈澍城) as Yan Kun (言琨)
- Zhu Hou Ren (朱厚仁) as Long Tingguang (龙庭光)
- Cassandra See (薛素删) as Luo Wenxin (罗文欣)
- Lin Yi Sheng (林益盛) as He Xiangnan (何向南)
- Liang Wei Dong (梁维东) as Cai Haijie (蔡海杰)
- Hong Hui Fang (洪慧芳) as Qiu Huaifeng