Mami Koyama is a veteran seiyu from Aichi Prefecture who is best known in voicing Arale in Doctor Slump, Ryoko in Urusei Yatsura, Launch in Dragon Ball, Balalaika in Black Lagoon, Ophicius Shaina in Saint Seiya, and Kycilia Zabi in Mobile Suit Gundam. She likes to be pigeonholed in Lady of War, The Baroness, and Femme Fatale roles and enjoys playing these types too. She also played against type, like Arale in Doctor Slump. Sometimes, she plays Hot Mom roles, too.

She had a relationship with Tohru Furuya, like in Mobile Suit Gundam, Urusei Yatsura, Dragon Ball, Saint Seiya, and Casshern Sins. To a point that they even married. Their marriage failed, but they stayed friends.

Notable roles by Mami Koyama:

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