Gabriel de Peyer is a co-founder of Best Friends Animal Society and the former chairman of its board of directors. In establishing the Sanctuary, he was its chief designer, organizing the layout of roads and the positioning and design of the animal areas. He was responsible for the cohesion and aesthetics of the Sanctuary as a whole. Currently, he is engaged in contact work via the telephone and speaking engagements. He lives at the Sanctuary with 15 cats and two dogs.