Ironically, he's known for his often squeaky, high pitched voice that is extremely distinguishable in several series that he played. Still, this is one of many 'hidden veteran' in the Seiyuu history who never seemed to be missing a note.
Video credits:
【声優】伊藤健太郎「Voice&Bike!!」 @kentaroito_vb
月刊ホビージャパンch @ch-hi2rr
HEAVEN'S DOOR @heavensdoor413
クッキーラン:キングダム @CRKingdomJP
シーモアちゃんねる @cmoa_ch
NBCUniversal Anime/Music @NBCUniversalAnimeandMusic
桐朋学園芸術短期大学 @tohodramamusic
Music:
01 SHIROBAKO - Shirobako OST Vol. 1
H.O.T.D OST- 11 Alluring Women
You Three Sisters, Be Moe - Gurren Lagann OST