| Age | 74 (age at death) |
| Birthday | 13 January, 1910 |
| Birthplace | New York City, New York, U.S. |
| Died | 4 December, 1984 |
| Place of Death | New York City, U.S. |
| Zodiac Sign | Capricorn |
| Nationality | American |
| Occupation | Artist |
Winfield B. Mercer (January 31, 1910 – December 7, 1984), professionally known as Jack Mercer, was a prolific American voice actor, animator and writer. He is best known as the voice of cartoon characters Popeye the Sailor and Felix the Cat. The son of vaudeville and Broadway performers, he also performed on the vaudeville and legitimate stages. Mercer provided numerous supporting voices in Superman 1941-1942.
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