Due to his deep voice, he was most known for dubbing into Spanish and Catalan other actors like Clint Eastwood, James Earl Jones and Arnold Schwarzenegger in the Terminator or The Expendables films.

His professional career began as an announcer at Radio Barcelona and RNE until 1985 when he made his first appearance in television as the host of the program Ya sé que tienes novio.

[1] Later he appeared in the regional TVs with the game show La Silla and replaced Silvia Jato in Pasapalabra in Antena 3 when she became a mother.

[1][4] His voice also appears in the Spanish dubs of several Disney films, including The Lion King as Mufasa, The Hunchback of Notre-Dame as Frollo, Mulan as the Supreme Ancestor,[1] and in The Jungle Book 2 as Shere Khan.

Romero died from complications of amyotrophic lateral sclerosis on 12 May 2013 in Barcelona just two and a half weeks shy of his 66th birthday.