- Parnphirat Phadungcharoen - Young Tuang
- Touchchavit Kulkrachang - Dome Thunder
- Tossaporn Chertkeitkong - Raj Chamang
- Aungwara Mongkhonsamai - Som
- Nipawan Taveepornsawan - Ped's Mother
- Thanachai Utchin - Pod Moderndog
- Anon Saisangcharn - Pu Blackhead
- Ittipong Kridakorn Na Ayudhaya - Tar Paradox
- Ekkarat Wongchalard - Dax Big Ass
- กรภพ จันทร์เจริญ - Joke So Cool
- Artiwara Kongmalai - Toon Bodyslam
- Tanachai Tantrakul - Yod Bodyslam
- Tanadol Changsawek - Pid Bodyslam
- Suchatti Janed - Shutt Bodyslam
- Natthanat Hiransomboon - Teddy / Bodyguard
- Luckana Siriwong - Koong and Kay's Mother
- Thitipan Kamplasiri - X's Father
- Kaewtip Saengol - Ern's Grandmother
- Techaniti Jirayuroch - Laem's Friend
- Jutarmas Klongkitroj - Som's Tomboy Girlfriend
- Nontapat Jitthan - Ped's Gang of Friends
- Pattara Lertanan - Ped's Gang of Friends
- Jeeranan Chanprom - Ped's Gang of Friends
- Titinun Wongpakwat - Ped's Gang of Friends
- Khawkwan Yimkarnbun - Ern's Friend
- Montita Lintara - Som's Friend
- Ben Khasagrid - Teacher Chukiat
- Thanisa Aungsakulrat - Nurse Office Teacher
- Thanisa Aungsakulrat - Girl Who Sings Luk Thung Song
- Thitapha Chaiyakul - Girl Who Sings China Dolls Song
- Siriwut Pongpitak - Boy Who Sings Mos Song
- Peerawas Eakwisanpong - Boy Who Sings Leo Putt Song
- Tanayutt Sukkhojai - Smart-aleck Boy
- Oraphan Arjsamat - Primary School Teacher
- Sopon Pornpolawat - Ern's Father
- Kunlayawat Kumnuan - Ern's Mother
- อดิสรณ์ ตรีสิริเกษม - Musical Instrument Shopkeeper
- Panayu Khunwallee - Musical Instrument Shop Employee
- Jimmy Whelan - Customer Trying Out Bass Guitar
- Pisit Poti - Customer Trying Out Guitar
- Komkrit Hirunchai - Customer Trying Out Drums
- Mata Paengluan - Teenager Riding Motorcycle
- Narong Kuntamara - Beer Vendor
- A. Jaritrum - Foreigner on Train's Wife
- Piyapat Paopat - Joke So Cool's Bodyguard
- Rungtiwa Saensuksanti - Little Artist Event MC
- Sakant Chawboankoeh - Devil Boys Gang
- Waranyu Surabantitkul - Devil Boys Gang
- Worrawut Thiensuwan - Devil Boys Gang
- Nareerat Chanfong - Hotwave MC
- Tanatorn Saelao - Hotwave MC
- Naput Sanpakit - Condominium Khun Lung Band Member
- Monmanas Svastisinha - Condominium Khun Lung Band Member
- Noppawit Aiumtrakul - Condominium Khun Lung Band Member
- Yodboon Charoensak - Condominium Khun Lung Band Member
- Tanakal Wongwarawipat - So Sad Band Member
- Supanat Potiwarakorn - So Sad Band Member
- Rachanont Pariyanont - So Sad Band Member
- Rachawit Setpakdee - So Sad Band Member
- Akkarachai Kantamala - So Sad Band Member
- Chanapa Yingamnuayrat - So Sad Band Member
- Sarnsiri Luesomboon - So Sad Band Member
- Kritpak Naeium - So Sad Band Member
- Anochai Padungsong - Senior Students' Band Member
- Siruj Buakhem - Senior Students' Band Member
- Rachanon Aemlaong - Senior Students' Band Member
- Tachavee Praveeranan - Senior Students' Band Member
- Krispakorn Pankongchuen - Backstage
- Patravee Srisuntisuk - Ern's Friend / Guitarist
- Vanida Pornnumchockchai - Ern's Friend / Bass Guitarist
- Analus Junteing - Ern's Friend / Drummer
- Ruthaiwan Wongsirasawat - Bodyslam MV Director
- Captain Kaewlumhud - Rehearsal Studio Manager
- Sangad Ruenngen - Agriculture Fair MC
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Richard Oswald
-
Richard Oswald
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