Pierre, a scientist, partners with Marie to investigate Sudowoodo's type classification. During their examination of a Sudowoodo specimen, they observe its Mimic move copying other attacks. A pivotal discovery occurs when they detect Sudowoodo's aversion to water, conclusively proving its Rock-type nature. The character's name, along with Marie's, references Pierre and Marie Curie, though the narrative does not address this connection. Pierre's involvement remains solely within this research context, absent from other seasons, films, or spin-off media.