Shi Yousan

Shi Yousan (Chinese: 石友三; pinyin: Shí Yǒusān) (December 12, 1891 – December 12, 1940) was a Chinese general of the National Revolutionary Army who served as the 9th Governor of the Chahar and 3rd Governor of Anhui provinces during the Republican era of China.
Shi is also notable for joining/defecting to, and subsequently betraying the forces of Wu Peifu, Feng Yuxiang, Chiang Kai-shek, Wang Jingwei, Zhang Xueliang, the Chinese Communist Party, and Japan, in that order.
While leading the 39th Army Group of the National Revolutionary Army, he planned to defect to the Japanese, but before he could do so he was kidnapped and buried alive by his sworn brother and subordinate Gao Shuxun, who later gained command of Shi’s unit.
For his many betrayals and defections he is known as the “Defector General” (Chinese: 倒戈將軍; pinyin: Dǎogē Jiāngjūn) or as Shi Sanfan (Chinese: 石三翻; pinyin: Shí sānfān, “Shi [who] turns three times”).