• 
  Jirayu La-ongmanee

  Ped
• 
  Nattasha Nauljam

  Ern
• 
  Pachara Chirathivat

  Koong / Kay
• 
  A. Jaritrum

  Foreigner on Train's Wife
• 
  Adisorn Trisirikasem

  Musical Instrument Shopkeeper
• 
  Akkarachai Kantamala

  So Sad Band Member
• 
  Analus Junteing

  Ern's Friend - Drummer
• 
  Anochai Padungsong

  Senior Students' Band Member

• 
  Anon Saisangcharn

  Himself - Pu Blackhead
• 
  Artiwara Kongmalai

  Himself - Toon Bodyslam
• 
  Aungwara Mongkhonsamai

  Som
• 
  Ben Khasagrid

  Chukiat - Teacher
• 
  Captain Kaewlumhud

  Rehearsal Studio Manager
• 
  Chanapa Yingamnuayrat

  So Sad Band Member
• 
  Ekarat Wongcharat

  Himself - Dax Big Ass

• 
  Gornpop Janjaroen

  Himself - Joke So Cool
• 
  Gunn Junhavat

  Tem Impact
• 
  Ittipong Kridakorn Na Ayudhaya

  Himself - Tar Paradox
• 
  Jeeranan Chanprom

  Ped's Gang of Friends
• 
  Jimmy Whelan

  Customer Trying Out Bass Guitar
• 
  Jutarmas Klongkitroj

  Som's Tomboy Girlfriend
• 
  Juthamas Wongmany

  Girl Who Sings Luk Thung Song
• 
  Kaewtip Saengol

  Ern's Grandmother
• 
  Khawkwan Yimkarnbun

  Ern's Friend
• 
  Komkrit Hirunchai

  Customer Trying Out Drums
• 
  Krispakorn Pankongchuen

  Backstage
• 
  Kritpak Naeium

  So Sad Band Member
• 
  Kunlayawat Kumnuan

  Ern's Mother
• 
  Luckana Siriwong

  Koong's Mother
• 
  Mata Paengluan

  Teenager Riding Motorcycle
• 
  Monmanas Svastisinha

  Condominium Khun Lung Band Member
• 
  Montita Lintara

  Som's Friend
• 
  Napat Chokejindachai

  Tuang
• 
  Naput Sanpakit

  Condominium Khun Lung Band Member
• 
  Nareerat Chanfong

  Hotwave MC
• 
  Narong Kuntamara

  Beer Vendor
• 
  Natthanat Hiransomboon

  Himself / Teddy / Bodyguard
• 
  Nipawan Taveepornsawan

  Ped's Mother
• 
  Nontapat Jitthan

  Ped's Gang of Friends
• 
  Noppawit Aiumtrakul

  Condominium Khun Lung Band Member
• 
  Oraphan Arjsamat

  Primary School Teacher
• 
  Panayu Kunvanlee

  Musical Instrument Shop Employee
• 
  Parnphirat Phadungcharoen

  Young Tuang
• 
  Patravee Srisuntisuk

  Ern's Friend - Guitarist
• 
  Pattara Lertanan

  Ped's Gang of Friends
• 
  Peerawas Eakwisanpong

  Boy Who Sings Leo Putt Song
• 
  Pisit Poti

  Customer Trying Out Guitar
• 
  Piyapat Paopat

  Joke So Cool's Bodyguard
• 
  Rachanon Aemlaong

  Senior Students' Band Member
• 
  Rachanont Pariyanont

  So Sad Band Member