premise: Keiko Toda (戸田 恵子 , Toda Keiko , born September 12, 1957 in Nagoya, Aichi) is a Japanese actress and voice actress. Her most famous role is the voice of the children's hero Anpanman on the long running anime "Soreike! Anpanman". She was also the voice of Thomas the Tank Engine in the Japanese dub of "Thomas & Friends" from Season 1 to Season 8. She was once married to Shuichi Ikeda.
hypothesis: Keiko Toda is mostly known as voice of Thomas the Tank.
reason: She is best known for voicing Anpanman, not Thomas The Tank Engine.