Henry attended Dun Laoghaire College of art and design and began his career in 1989 with Don Bluth Animation Studios in Dublin. Here he spent four years as a background artist on the feature films Thumbelina,
A Troll in Central Park and Rock-a-doodle.
In 1995 he moved to the U.S. to work for
20th Century Fox Animation as a background artist. Here he spent six years as an established background and conceptual artist working on Anastasia, Bartok the Magnificent and Titan AE. From there he moved to Norway to Filmkameratene as a conceptual artist on the production of ‘Karlsson On The Roof’.