At the age of 5, he attended the National Circus school in Havana. When he was 17, he "moved" to Miami, later participated in the first season of the soap opera Grachi, where he portrayed Sibilo "Ora" Santisteban. In 2012, he played Miguel Ángel Samaniego in the soap opera El rostro de la venganza, along with Kimberly Dos Ramos and Maria Gabriela De faria who worked with Grachi. In 2014 began recording soap opera Voltea pa' que te enamores, a new adaptation of the Venezuelan telenovela of the same name, which debuted in 2015.
In May 2013, Valdés formed Mexican boy band CD9 with Jos Canela, Alonso Villalpando, Alan Navarro, and Freddy Leyva. They independently released their first single, "The Party", in August. They later signed a recording contract with Sony Music México. Valdés left the group in October, citing "personal reasons", and he was replaced by Bryan Mouque.
In May 2015, Valdés released "#MAS", his first single as a soloist.
|2011||Grachi||Sibilo "Ora" Santisteban||74 episodes|
|2011||World Campaign in Support of Ibero-American Cinema||Himself||Video short|
|2012-13||El rostro de la venganza||Miguel Ángel Samaniego||Co-lead role|
|2015||Voltea pa' que te enamores||Gerardo Ramos||Recurring role|
|2013||"Dime si tú"||Chico en la fiesta||Estephy feat Chino y Nacho|
¿Quién es William Valdes? Conoce al presentador/actor/músico de 20 años que vuelve a las chicas locas y entrevista a los famosos en "Despierta America."