Neville was born in Madrid but lived in Hollywood in the 1930s, in the period of the dubbed Spanish versions of the studios' English-language films. He wrote dialogue for MGM's Spanish language films, and won acclaim for his script adapted from George Hill's The Big House (1930). During the Spanish Civil War, Neville made a few short propaganda films for the Nationalist side. He also made three movies in Rome. The films he directed in the 1940s and 1950s mixed realism and romanticism, but did not perform particularly well at the box-office.
His father was Edward Neville Riddlesdale, an English engineer who was director of his family's engine company in Spain (Julius G. Neville & Co, Liverpool, later the Anglo-Spanish Motor Company). His mother was Mary Romrée Y Palacios, daughter of Count and Countess de Berlanga de Duero, a title he would later inherit.
Edgar Neville married Angeles Rubio Arguelles y Alessandri. Their son, Raphael Neville, Count of Berlanga de Duero (11 August 1926 – December 1996) was a painter who, in 1958, created a seaside resort in Sardinia, called "Porto Rafael", where his birthday is still celebrated every year on 11 August. Upon his return to Spain, Neville directed La señorita de Trevélez, and it was hailed one of the best films of its time.
María Luisa Burguera Nadal, Edgar Neville: entre el humorismo y la poesía, Servicio de Publicaciones, Diputación Provincial, Málaga, 1994.
María Luisa Burguera Nadal, Edgar Neville. Entre el humor y la nostalgia. Institució Alfons el Magnànim, Valencia, 1999.
Felix Monguilot Benzal, Volver al frente: reconstrucción de la película Frente de Madrid (1939) de Edgar Neville, in Juan A. Ríos Carratalá (ed.), “Universo Neville”, Instituto Municipal del libro, Málaga, 2007, pp. 145 – 166.
Julio Pérez Perucha, El cinema de Edgar Neville, 27 Semana Internacional de Cine, Valladolid, 1982.