Guillermo Díaz, better known by his YouTube name Willyrex, is a Spanish YouTube personality and author. He has two YouTube channels: Willyrex and TheWillyrex.

As of November 2017, his Youtube channel TheWillyrex has over 12 million subscribers and 4.35 billion views, making it the 3rd most subscribed channel in Spain and the 75th most subscribed channel in the world. According to Diaz, he originally started his YouTube channel to share gameplays with his friends.

Diaz has said that he created his YouTube name, Willyrex, as a messenger screen name when he was about 11 years old- years before starting his YouTube channel. He chose willy, because it is a nickname for the English equivalent of his first name, William. He chose rex because it was Latin for the word king.

Diaz began studying a degree in Business Administration but left school a few months after starting in order to focus full time on YouTube.

In 2014 he moved to Los Angeles, then briefly moved to Andorra before moving back to Spain.

On 21 August 2019 he announced he will marry Cristina .

	Creado por Samuel Tenorio hace alrededor de 7 años

POR Samuel Tenorio