Gaku Hamada was born on 28 June 1988 in Tokyo, Japan. He is an actor, known for Kamen Rider Black Sun (2022), Ultraman Tiga & Ultraman Dyna & Ultraman Gaia: Battle in Hyperspace (1999) and Sake-Bomb (2013). He has been married to Miyuki Koizumi since July 2011. They have one child.