E. R. Cruz is a Philippine comics artist who mainly works in US comics. In the Philippines, he contributed many illustrations and comics for Liwayway, and drew stories for various publications like Holiday and Pioneer, published by GASI. In the States, he adapted literary classics into comics for Now Age Books, such as 'Gulliver's Travels', 'The Prince and the Pauper' and 'Treasure Island'. He worked on DC's 'The Shadown', and contributed to the company's mystery titles, like 'House of Mystery', 'Unexpected' and 'Our Army at War'. He also published in the Warren magazine Eerie. For Marvel, he worked on 'Moon Knight' and 'Savage Sword of Conan'. In the 1980s, he did model and background design for the popular 'Transformers' cartoon series, while also contributing to the collection Pocket Classics (a.o. 'The Iliad').