Soji Arai was born in Niigata, Japan. After graduating from Waseda University, one of the top private institutions of higher education in Japan, he began acting with the Bungakuza theater company. In 2002, he made a major impact on the Tokyo theater world with his starring role of Max in Bent directed by Robert Allan Ackerman.

• Pachinko (2022)

  
• 46億年の恋 (2006)

  
• SP: Keishichô keibibu keigoka dauyonkakari (2007)

  
• The Ramen Girl (2008)