Gary Oak is a character from the popular Pokémon franchise, known for being a rival to the main character, Ash Ketchum. He is the grandson of Professor Oak, a renowned Pokémon researcher, and is often portrayed as confident and competitive. Gary is skilled in Pokémon battles and aims to become a Pokémon Master. In the Pokémon animated series, Gary is introduced as a skilled trainer who often challenges Ash. He travels with his own team of Pokémon and is known for his catchphrase, "Smell ya later!" His character development showcases the rivalry and friendship that can exist between trainers.