Gessy Fonseca was a Brazilian actress and voice actor, widely regarded as a pioneer in the art of dubbing in Brazil and celebrated for her extensive career across radio, television, and film. Born in São Paulo on March 13, 1924, she began her artistic journey in 1941 in radio theater at Rádio Record. Her distinctive voice quickly propelled her to fame, earning her titles such as "rainha da radionovela" (queen of radio soap operas) and, later, "a dama da voz" (the lady of the voice). Fonseca's career was marked by continuous work and significant achievements, including being the first radio actress to receive the Prêmio Roquette Pinto in 1950 and winning a best actress award for her role as Dona Lola in the first television version of Éramos Seis in 1962.

Her entry into dubbing began in 1961, and she became a foundational figure in the industry in Brazil, working for studios such as Álamo, Cinesom, and AIC. Her voice became iconic through a vast array of characters across different media. While her contributions to anime are part of her broader legacy, she was known for lending her voice to numerous animated series and films. One notable example is her role as Toki in the Brazilian dubbing of the Studio Ghibli film Ponyo on the Cliff by the Sea. She also voiced the character Rainha-Mãe dos Mares in Hans Christian Andersen's The Little Mermaid [citation:user]. Beyond these specific credits, her extensive dubbing portfolio includes the character Cologne from Ranma ½ and roles in various other series and films, such as providing the voice for the character Dona Benta in the animated adaptation of Sítio do Picapau Amarelo in 2011, a character she had first voiced on the radio in 1943 with praise from author Monteiro Lobato himself.

Throughout her career, Gessy Fonseca's work was characterized by her versatility and pioneering spirit. She was involved in dubbing the first Brazilian film, Caiçara, under the direction of Adolfo Celi. Her voice became familiar to generations of viewers through iconic roles such as the Catwoman in the Batman live-action series, Aunt May in the Spider-Man animated series, Endora in Bewitched, and Jessica Tandy in Driving Miss Daisy. She also contributed her voice to beloved comedy series like Chaves, where she dubbed both the character Dona Edwiges (the "Madwoman on the Staircase") and the parrot Luís Manoel. Her talent was recognized with industry awards, including a Prêmio Yamato for Best Supporting Actress Dubbing for her work in Punky, a Levada da Breca in 2009. Fonseca continued to work well into her nineties, and at the time of her passing on November 10, 2018, in São Paulo, she was acknowledged as the longest-active voice actor in Brazil.