Mr. Moto was conceived out of the popularity Charlie Chan. Though Charlie Chan is of Chinese-descent and Mr. Moto was Japanese, both fit into the category often described as "oriental-sleuth." In this type of show, the detectives were of Asian descent and spoke with a foreign accents regardless of the nationality of the performer. Like all detective-mystery old time radio shows, in each show the protagonist single-handedly discovered the origin of the crime thus saving the day.