Samson Oak/Anime

Samson debuted in Alola to New Adventure!. He is the principal of the Pokémon School. His cousin had assigned  and  to deliver an  to him, which they did. While Delia returned home, Ash chose to stay behind after becoming a student at the school.

In Lillie's Egg-xhilarating Challenge!, Samson assigned the students to look after one of two Eggs, one of them being the Egg that Delia and Ash had brought with them. They chose the white Egg and he looked after the other Egg, which hatched into a in Getting to Know You!.

In Racing to a Big Event!, Samson entered the Pokémon Pancake Race with and won.

To celebrate the Pokémon School's twentieth anniversary, Samson arranged a special excursion to Kanto to visit Professor Oak, along with Ash,, and from Alola, Kanto! to When Regions Collide!.

In Let Sleeping Pokémon Lie!, Samson told Ash and his classmates of how he met Komala. Later, he, along with Professor Kukui,, and , helped Komala learn , thus putting a stop to 's routine tantrums after noticing its audience sleeping through its songs.

In League Offenders and Defenders!, Samson surprised Ash and his classmates when he informed them that he would be entering the Manalo Conference. In Battle Royal 151!, Samson was among the 151 Trainers taking part in the Battle Royal preliminary round of the Manalo Conference. He entered with Komala and was ultimately among the 16 Trainers remaining at the end. The match-ups revealed that he would be battling Hau in the first round.

In Battling Besties!, Samson battled Hau in the first round of the Manalo Conference. He used his against Hau's Alolan, but it was defeated, thus eliminating Samson from the tournament.