Jisho

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Noun
1. double role; one person playing two roles; wearing two hats
Wikipedia definition
2. Dual roleDual role (also known as double role) refers to one actor playing two or more roles, which may be deliberately scripted in a play or film, or merely be a by-product of a low budget. In a theatrical production where more than one actor plays multiple characters, it is sometimes referred to as an "Ironman" cast. In film and television, a dual rule is commonly used either for comic effect or to depict identical twins.
Read “Dual role” on English Wikipedia
Read “一人二役” on Japanese Wikipedia
Read “Dual role” on DBpedia

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