Here I will Liste off all the Pokemon Ash caught within the first 16 seasons of the anime, what season he caught them, what episode he caught them, where he caught them, and their original trainers (if they had a trainer before Ash). Here are the first 20.
Kanto (Original Series)
1. Pikachu (episode 1- Pokémon- I Choose You!)
Pikachu was Ash's starter Pokemon that he received from Professor Oak. He received Pikachu because he woke up late on the Tag he was supposed to start his Pokemon training. Pikachu didn't like Ash AT ALL when Ash first got him, and was very disobedient, refusing to help...
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