The Jack Sparrow look-a-like known for entertaining Pattaya tourists with his magic tricks died following a head-on collision on Sunday night.
Mr Jirasak, 44, hit another biker after crossing into the wrong side of Soi Tungklom Tanmun at speed. The 40-year-old motorbike taxi driver involved in the crash is still in hospital in a coma.
A convenience store worker told police the Jack Sparrow impersonator had been in the shop buying cigarettes shortly before the accident and appeared to be drunk. She also said he drove off at high speed.
Jirasak has been doing the rounds in Sin City for years dressed as the Captain Jack Sparrow from the Pirates of the Caribbean movies.