Maximilien de Robespierre is the secondary antagonist of Dreamworks 2014 animated film, Mr. Peabody & Sherman and the sole antagonist in the movie to be defeated. He is the political revolutioner of France. He is voiced by Guillaume Aretos.
He tries to execute Mr. Peabody and Sherman because he thinks they are the aristocrats oppressing the common folks of France. He tries to guillotine Mr. Peabody, but fails. He is yeasily angered about being tricked by a cantaloupe while Mr. Peabody and Sherman runs in the sewers. Robespierre challenges a sword fight with Mr. Peabody, and Mr. Peabody wins. Finally, Mr. Peabody and Sherman escape from Robespierre.
Later on in the movie, the rip in the space-time continuum opens, which causes the people and objects from the past to go right to the present. The police tells Robespierre to back away from the WABAC, but he refuses so he gets tased, and he is defeated.