Siwat Chotchaicharin (Thai: ศิวัฒน์ โชติชัยชรินทร์), better known by his nickname Cee (ซี), is a Thai actor and singer managed by Channel 7 (Thailand). He attended Assumption University (Thailand), earning a Bachelor of Business Administration. He also played Fon Luang, a leading role in the musical Klaikangwol: Musical On The Beach, the first Thai beach musical, which was held at Hua Hin from 20 to 24 February 2013.