Actor, Voice Actor, Singer, Performer and Photographer. He was a Mexican actor, voice actor and singer, who worked in radio, TV, film, voice acting, and television, from the early 1940s until the mid-1960s. Born Ciro Calderón Casillas, he became a outstanding radio actor, with addition of singer, a pssessor of a deep bass voice, ideal for that time when tenor voices could not be captured with such fidelity by microphone and amplification systems. He had interventions with secondary roles in the cinema, in the 1940s and 1950s. In 1944, he was chosen and selected by Metro-Goldwyn-Mayer to travel to New York City, becoming a part of a group of voice actors and actresses who made voice dubs to Spanish in the company. In New York, he voiced respected Hollywood actors such as Edmund Breon and Hugh Marlowe. Later, after he returned from the United States, he continued with his film and radio career, and at the time, he debuted on television. He worked in companies such as Ken Smith's company CLADSA, SISSA, CINSA, and Churubusco, being in the latter one where Ciro made some Disney dubs. Among his most remembered performances as a voice actor, he voiced cartoon characters such as the Indian Chief in "Peter Pan (1953)", Trusty in "Lady and the Tramp (1955)", the Walrus in "Alice in Wonderland (1951)", Brain in the episode "Dibble Sings Again" of Hanna-Barbera's "Top Cat (1961-1962)", Pepe Le Pew in some "Looney Tunes" cartoons, and live action characters such as Satanas in "King of Kings (1961)", and his most remembered role, "Mr. Ed (1961-1966)", in the 1960s television series of the same name. In 1966, after finishing the dub of "Mr. Ed", he retired from voice acting when was diagnosed with a gastric ailment, after more than 22 acting years. He moved to Puerto Vallarta with his wife, Dolores Rivera de Calderón, and he dedicated himself in photography. He died on June 7, 1967, at the age of 57, as a result of a head injury.