• 
  Robert Factor

  Homeless man
• 
  Vance Wells

  Professor
• 
  Alena Savostikova

  Rose
• 
  J.T. Vancollie

  (as J.T. Vancollie)
• 
  Zhou Guo

  Homeless man
• 
  Roman Xing

  Policeman
• 
  Liang Zhao

  Young man
• 
  Tingting LI

  Lulu

• 
  Xiaosong Yang

  Young man
• 
  Sarah

  Scientist
• 
  Seng Wang

  Young man
• 
  Hanxi Li

  Teacher
• 
  Xinming Wang

  Tongtong
• 
  Mingtang Li

  Taiga old man
• 
  Alesia Barry

  Angela

• 
  Zijing Lin

  Lulu's brother
• 
  Youen Wang

  Mantou
• 
  Rongguang Ye

  Steven grandfather
• 
  Claire Wang

  Chen Chen
• 
  Xiaowei Zhang

  Happy boy
• 
  Kexin Bao

  Jia Jia
• 
  Dongai Li

  Scientist
• 
  Peng Wang

  Scientist
• 
  John Gu

  Liang Liang
• 
  Xunjin Bi

  Steven Mum