Johnny Yong Bosch (born John Jay Bosch) was born in Kansas City, Missouri and raised in Garland, Texas. While growing up, he had taken an interest in martial arts after having seen the works of Bruce Lee and Jackie Chan, winning several martial arts competitions as a result. After being informed about the TV series Mighty Morphin Power Rangers (1993) by his martial arts teacher, Bosch subsequently joined the show's second season as Adam Park (replacing Walter Jones, who had played the character in season 1), and reprised the role in both films based on the franchise as well as Power Rangers Zeo (1996) and Power Rangers Turbo (1997)

His main claim to fame, however, arrived in the form of his voice acting career in anime and video games, when he landed the role of Kaneda in a redub of Akira (1988) that was recorded by Pioneer in 2001, with Cam Clarke having previously voiced the character in the 1988 Streamline dub. This ultimately lead to further roles in more anime series and games in the years that followed, including Vash the Stampede in Trigun (1998), Renton Thurston in Eureka Seven (2005), Genma Shiranui and Sasori in the Naruto franchise, Yu Narukami in Shin Megami Tensei: Persona 4 (2008), and, most notably, Ichigo Kurosaki in the Bleach franchise. Among Bosch's later roles include Sabo in One Piece (1999) from 2020 onward, Toji Suzuhara in Netflix's 2019 redub of Neon Genesis Evangelion (1995), and Ryogi in Boruto: Naruto Next Generations (2017), among others.