Patrick O’Callaghan Patrick O’Callaghan is a professional animator and visual artist who feels very passionately about animation, storytelling, performance arts and expression through visual media. He has worked with studios such as Treehouse Republic, Telegael, Geronimo Productions (previously Monster Animation), Monster Entertainment, 2d3D Animation, Kavaleer Productions, Brown Bag Films, Abu Media and Fountainhead Design. He has experience in several disciplines within the industry, producing character animation, motion graphics, storyboarding, character design, concept art or compositing.