唐纳德·法森,迈克·艾普斯,伍德·哈里斯,欧玛瑞·哈德威克,埃米里奥·瑞弗拉,达里乌斯·麦克拉里,Cisco Reyes,Yasmin Deliz,洛博·塞巴斯蒂安,Malik Barnhardt,茅斯·达夫,黛比·艾伦,劳伦·伦敦,Jo D. Jonz,Shawn Michael Howard,隆巴多·博伊尔,Cassidy
Miss Happy stars Pancake Khemanit as a happy-go-lucky woman named Happy, who often annoys her best friend Golfie (Ben Chalatit). Unfortunately, Happy is diagnosed with having an irregular heartbeat that will likely cause her death within a month. In an effort to survive, Happy looks up information and finds a YouTube video made by Tul, played by Jitpanu Klomkaew (Ball). Tul's video claims that Happy can stay alive if she dances in the way shown in the video.
