[1] Some of his major anime roles include Son Goku in Saiyuki, Kira Yamato in Mobile Suit Gundam Seed, Mobile Suit Gundam Seed Destiny & Mobile Suit Gundam Seed Freedom, Kazuki Fuuchouin in GetBackers, Masaru Daimon in Digimon Savers, Kaoru Hanabishi in Ai Yori Aoshi, and Tomoki Sakurai in Heaven's Lost Property.
In video game franchises he voices Sanada Yukimura in Sengoku Basara, Keiichi Maebara in Higurashi When They Cry, Kilik in Soulcalibur, and various characters in Haruka: Beyond the Stream of Time.
He partially voices Shirogane Takeru in the Muv-Luv series.
Hoshi was also known for his voice roles of villains as Goro Akechi from Persona 5, Death Gun from Sword Art Online, and Lio Shirazumi in The Garden of Sinners & Sentarō Miya in Kono Oto Tomare!
[2][3] Additionally, in the 2007 Seiyu Awards, Hoshi was a nominee in the category "Best Actors in supporting roles" for his portrayal as Kira Yamato in the Mobile Suit Gundam SEED Destiny.