José de la Luz Hernández and Amadita Rodríguez, the parents of Aarón Hernán, welcomed him into the world, and he was soon joined by his brother, Héctor Hernández. Tragedy struck when their father passed away, and his mother, determined to provide a better life for her sons, relocated the family to Mexico City in 1956.
Aarón Hernán's early life was marked by a passion for acting, despite his parents' wishes for him to pursue a more practical career in accounting. He would eventually marry Edith Sánchez, with whom he would have two children, Aarón and Edith.
Hernán's acting career began in the 1950s, when he took the stage in the play Las manos sucias, written by Jean-Paul Sartre. He was joined by a talented cast, including Tere Velázquez, Carlos Bracho, and Sergio Barrios. This early success was followed by his participation in the Instituto Cinematográfico, Teatral y Radio-Televisión, a prestigious acting school affiliated with the Asociación Nacional de Actores (ANDA),where he was mentored by the renowned director Andrés Soler.
In 1958, Hernán starred in El gesticulador, a play written by Rodolfo Usigli, as part of the ICT's Moncell group. This marked a significant milestone in his career, as it showcased his talent to a wider audience.
Hernán's film debut came in 1965, when he appeared as a supporting actor in Viento negro. This was followed by his television debut in the soap opera La mentira, where he worked alongside esteemed actors such as Julissa, Enrique Lizalde, and Fanny Cano.
Throughout his career, Hernán worked tirelessly, taking on various roles in both film and television. He was also a dedicated member of the Mexican Social Security Institute's theatrical company.
In addition to his acting career, Hernán held various positions within the National Actors Association (ANDA). He served as Secretary of Internal and External Affairs and Treasury on multiple occasions and was General Secretary from 1998 to 2002.
In his later years, Hernán faced personal challenges, including a legal battle to maintain control over his assets. Despite this, he remained committed to his craft, even relocating to La Casa del Actor, ANDA's retirement home. Tragically, a fall during his stay led to a femur fracture, and complications following surgery ultimately resulted in a lethal myocardial infarction.