Because of his aptitude with characters and accents, Danny Kaye was often cast in roles that served multiple functions. In three of Kaye’s films—Wonder Man (1945), On the Riviera (1951), and On the Double (1961)—he performed in double-roles where he played two characters that looked exactly alike. In On the Riviera, Kaye played Jack Martin, an American entertainer performing in nightclubs on the French Riviera. Martin gives an impersonation of the wealthy businessman, Henri Duran, in one of the performances. Duran, taken by the striking physical similarities between him and Martin as well as Martin’s great impersonation, requests that Martin impersonate him at a party while he tends to business in London.