Anecdotes

After graduating from high school, Ishii went to the Tokyo Announcement Academy where he studied to become a voice actor.

During his junior high school days he played a game called .hack//G.U. and became a fan of Takahiro Sakurai who inspired him to become a voice actor.

He won the 13th Seiyuu Awards for Best Rookie Actor.

He was married to Atsuko Enomoto on 2016 and announced their divorce on August 9, 2018.

He is the son of Japanese father and Filipino mother, and lived in Philippines for 4 years as a child and returned to Japan for his school education.

He has been diagnosed with a maladjustment, causing him to take a hiatus from voice acting.

He was also a member of his junior high school tennis club.