Gideon Hay was born in Southport, England in 1965. He and his family immigrated to Toronto, Canada in 1967. Like many children he was fascinated by dinosaurs, snakes and bugs. At a young age he was introduced to the films of stop motion animator Ray Harry Housen, most notably his movie “Jason and the Argonauts”. This began Gideon’s lifetime passion for monsters and monster movies. Early on he was introduced to pottery clay and began sculpting small figurines.

In 1972 the family moved again to Vancouver, Canada. This is where his interest in movies and zoology truly took hold. By age eight Gideon started sculpting in plastercine and experimenting in stop motion animation. He also had a large collection of reptiles and other animals that inspire his creature designs to this day.

Gideon watched any monster movies he could get his hands on, and by the age of 10 he had seen most of the Universal monster movies, Godzilla movies and many English "Hammer" films from the 60’s. Soon after the movie Star Wars was released and it changed his world forever.

After graduating from high school Gideon attended Emily Carr School of Fine Arts. He learned to love gypsum cements by making molds at a monster-mask company in Los Angeles. Gideon then moved to Vancouver Island where he joined his mother's company, Madeline Neil St. Clair Originals, sculpting and casting many original porcelain doll heads, hands and feet.

When his privately commissioned large-scale sculptures starting gaining attention, Gideon enjoyed his first film industry job working for Lindala Makeup FX on several episodes of X-Files in 1993. Feature films soon followed, including Deep Rising, where he worked on the second unit creature crew with Academy Award winning makeup artists Rob Bottin and Stephan Dupuis.

In 1996 Gideon started employment at Mainframe Entertainment sculpting maquettes for Reboot, Beastwars, War Planets, Weird-Ohs, Barbie, Scary Godmother and Casper's Haunted Christmas among many other projects.

After five years he began teaching sculpture at Vancouver Film School as well freelance sculpting, mold making and conceptual design for many TV, Movie and Video Game projects including; Scary Movie, Chronicles of Riddick , Final Destination 2, Monster Island, Willard, Stargate Atlantis, Scooby Doo 3, Dark Angel, Cat Woman and also Stephen Spielberg’s Taken. Gideon spent equal time working on projects for Science World and private art commissions from his Vancouver studio. He also worked in prop shops (White Monkey Design) and makeup effects studios (Master’s FX, Schmenken FX, SFX, WCT) on projects such as: Twilight Zone, Dead Like Me, Jibber Jabber, White Chicks, Snow Walker, Wrinkle In Time and more.

In 2004 Gideon moved to a larger studio where he continued to work on more high profile projects such as: X-Men 3, Slither, Fido, Snakes On a Plane, Alien vs. Predator Requiem, The Wicker Man and Masters of Horror. He also made large, detailed dinosaur and creature maquettes for the Disney/Propaganda video game Turok. During that time he also started teaching sculpture at Think Tank Training Centre and a prosthetics for makeup effects course at Vancouver Film School.

Today, Gideon conitues to create from his Vancouver studio, recently working on Night at the Museum 2, A Haunting In Connecticut and Tron 2.0.