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12 Angry Men

Which actor played the lone dissenting juror in 12 Angry Men?

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Sidney Lumet in a tuxedo holds his Honorary Academy Award and smiles backstage at the 77th Annual Academy Awards, with a gold Oscar statue in the background. — Sidney Lumet American director Sidney Lumet after receiving an Academy Award for lifetime achievement, 2005.

In the 1957 film 12 Angry Men, which served as the directorial debut for Sidney Lumet, the lone dissenting juror (Juror #8) was played by Henry Fonda.1