Yamato and Kosaburou, also known as Cassidy and Butch, are minor antagonists. Kosaburou is voiced by Eric Stuart and Yamato is voiced by Andi Whaley.

Yamato and Kosaburo

about Edit

Characteristics: Yamato- tall, slender, curvy, long ginger hair, purple eyes, beautiful, evil, arrogant, rude, snobby, competitive; Kosaburou- tall, slender, green hair, brown eyes, handsome, evil, easily-offended, short-tempered, arrogant, competitive

Real age: 20 real years

Species: humans

Nationality: Japanese

Religion: Shinto

Comes from: Pokémon

Race: traditionally-animated

Subrace: negative character

relations: their respective pokemon (pets)


  • with each other: Most of the time, they treat each other with a lot of respect and trust. They enjoy working together as a team, although, from time to time, they annoy each other with specific things-Yamato annoys Kosaburo with mispronouncing his name and he annoys her with his temper and bragging.
  • their respective pets: They usually treat them as their battle assistants.


  • Kosaburous's original actor is Takehito Koyasu and Yamato's original actress is Masako Katsuki.
  • Kosaburo shares his original actor with Bobobo-bo.
  • They are the main antagonists of the episode Butch, Cassidy and the kid.
  • Yamato shares her English actress with Minto Aizawa.
  • Yamato has a habit of often forgetting the names of other cartoon characters. Sometimes that includes the name of her own partner as well.
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