Soma Saito (斉藤壮馬; Saito Soma) was born on April 22, 1991, in Shouwa, Yamanashi Prefecture, Japan, and is the eldest of three siblings, having two younger sisters. He is a voice actor and singer-songwriter signed to 81 Produce and Sacra Music – Sacra Music is a subsidiary of Sony Music Japan.

Despite debuting as a voice actor, Saito was originally planning on becoming a novelist or a musician, but was inspired by Akira Ishida (石田 彰)’s role as コエムシ (Koemushi) in the animated adaptation of ぼくらの (Bokurano) (2007) to pursue voice acting when he was in high school.

In 2008, he signed with 81 Produce after their audition and started taking classes at their voice acting school alongside attending high school. One year later, he also won “Judges' Special Prize” at the 33rd National High School Comprehensive Cultural Festival (全国高等学校総合文化祭) in the recitation category, and finally made his debut in
voice acting in 2010 voicing minor characters in anime and video games.

Saito would take a two year break to focus on university, attending Waseda (早稲田大学). After graduating in 2014, he would take on more prominent voice acting roles, such as the animated adaptation of the card game フューチャーカード バディファイト (Future Card Buddyfight) as 龍炎寺タスク (Tasuku Ryuuenji).

He would later somewhat fulfill his childhood dream of becoming a musician when he debuted as a solo singer in 2017, with the single フィッシュストーリー (Fish Story), with label Sacra Music. However, it wasn’t until his third single, デート (Date), that he started to write and compose his own songs.