Rafael Cortez was a Brazilian voice actor active in the dubbing industry during the 1960s. He began his career in São Paulo around 1964 at the AIC studios, a pioneering dubbing studio in Brazil. His entry into the field was facilitated by dublador José Marques Thomé, and he was formally accepted into the studio after a test with the artistic director, Amaury Costa.

During his time in dubbing, which spanned approximately two years until 1966, Cortez performed various minor roles in series and cartoons. His most notable work from this period was providing the voice for the title character in the animated series Jonny Quest. He also voiced the character Yokio Hubat in the first dubbing of the Japanese series National Kid. Consistent with the user's query, Cortez is also credited with voicing the character Susano in the anime O Príncipe e o Dragão de Oito Cabeças (The Little Prince and the Eight-Headed Dragon).

Cortez left the dubbing profession around 1966 to pursue a university education in medicine. After graduating and establishing himself as a physician, he made a brief, one-off return to voice acting. A patient who was a dubbing director invited him to record a narration for a National Geographic production, allowing him to revisit the craft temporarily.