How many movies have Siraphop Manithikhun and Withawat Thaokhamlue acted in together?

They have worked on 4 movies together! Their first movie together was Make Me Shudder (2013) while their highest rated movie together was Dangerous Boys (2014). They have not worked together since Make Me Shudder 3 (2015). They are most known for their horror films together.