[1] Igawa founded Black Tent Theatre, a theatrical group in Japan[2] before moving to the UK and becoming the first Japanese member of The Royal Shakespeare Company in 1986.
[5] Additionally, Igawa provides the voices of Professor Moshimo in Robotboy, and Hiro in the Thomas & Friends franchise starting with 2009's Hero of the Rails.
[6] His television roles have included appearances in Lovejoy, Yu-Gi-Oh Duel Monsters, The IT Crowd, Torchwood, Casualty, Archer, Doctor Who, and The Crown.
[9] In 2024, he will next be seen starring in Kyoto, a new play on the West End theatre, reuniting with the Royal Shakespeare Company.
He studied at The Haiyuza Theatre Company Acting School and Toho Gakuen College of Drama and Music.