Pablo was born in Madrid (Spain). He is the nephew of Spanish director Agustin Diaz Yanes, who offered him his first jobs as an actor in 2002's "Sin Noticias de Dios" and 2006's "Alatriste". He trained in various drama schools including LAMDA, Mountview Academy of Theatre Arts and Estudio Corazza in Spain, and has worked as an actor in most of the fields, always on the move between London and Madrid thanks to his native bilingualism. He presently lives in his birth town with his fiancée actress Lara Loher.

Pablo is half Spanish, half Polish, but was brought up in an Anglo-Spanish environment at home.