Kyril Bonfiglioli was variously an art dealer, editor, and writer. He was born Cyril Emmanuel George Bonfiglioli in Eastbourne, to an Italo-Slovene father, Emmanuel Bonfiglioli, and English mother, Dorothy nÃ©e Pallett. Having served in the army from 1947 to 1954, and been widowed, he applied to Balliol College, Oxford where he took his degree. After his divorce from his second wife he lived in Lancashire, Jersey and Ireland. He died in Jersey of cirrhosis of the liver in 1985. He had five children.
He edited Science Fantasy magazine for a period from 1964 to 1966, appointed by David Warburton of Roberts and Vinter Ltd.; and the successor Impulse for its first few issues in 1966 before handing the reins to Harry Harrison.