Carlos started in animation as a character designer at Amblimation-Universal Pictures in London, and worked on Were Back: A Dinosaur´s Story and Balto. After establishing his studio in 1993 he designed characters for the DreamWorks movies The Prince of Egypt, Antz, The Road to El Dorado, Spirit, Sinbad, Shark Tale, Madagascar, Flushed Away, Kung-Fu Panda, Bee Movie, How to train your Dragon. And for other studios Arthur Christmas, Hotel Transylvania and The Pirates! Band of Misfits and Pourquoi j’ai pas mangé mon Père.