- Khieu 'Poev' Ches
- Self - Guard
- Yeay Cheu
- Self - Him Houy's Mother
- Nhem En
- Self - Photographer
- Houy Him
- Self - Security deputy
- Ta Him
- Self - Him Houy's Father
- Nhieb Ho
- Self - Guard
- Prakk Kahn
- Self - the Torturer
- Peng Kry
- Self - Driver
- Som Meth
- Self - Guard
- Chum Mey
- Self - Survivor
- Vann Nath
- Self - Survivor
- Top Pheap
- Self - Interrogator & Typist
- Tcheam Seur
- Self - Guard
- Sours Thi
- Self - Head of Registers
- Mak Thim
- Self - S21 Doctor
