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Tomoko Sasaki (佐々木 朋子 Sasaki Tomoko?) is a Japanese musician and voice actress who has done voice work for the Japanese version of the Sonic the Hedgehog series.


During the production period of Sonic X, the role for the Chao was recast to Ryo Hirohashi, who also played the species in the main series games released during that time (Sonic Heroes and Shadow the Hedgehog). Sega has since returned to using Sasaki's clips starting from 2009.


Voice acting



  1. SPACE CHANNEL 5 UKIUKI MUSIC FESTIVAL ONLINE Digest Movie [for J-LODlive]. YouTube. 4GamerMovie (16 December 2020). Retrieved on 8 July 2021.

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