<Li> Patton Oswalt as Remy, a rat with heightened senses of taste of smell, enabling a talent and desire for cooking . Director Brad Bird chose Oswalt after hearing his food - related comedy routine . </Li> <Li> Ian Holm as Chef Skinner, a diminutive chef and owner of Auguste Gusteau's restaurant . Since Gusteau's death, Skinner has used the Gusteau name to market a line of cheap microwaveable meals . Skinner's behavior, diminutive size, and body language are loosely based on Louis de Funès . </Li> <Li> Lou Romano as Alfredo Linguini, the son of Auguste Gusteau and Renata Linguini . </Li> <Li> Brad Garrett as Auguste Gusteau (whose first and last names are anagrams of each other). Many reviewers believe that Gusteau is inspired by real - life chef Bernard Loiseau, who committed suicide after media speculation that his flagship restaurant, La Côte d'Or, was going to be downgraded from three Michelin stars to two . La Côte d'Or was one of the restaurants visited by Brad Bird and others in France . </Li>

Who plays the voice of linguini in ratatouille