Who is the Japanese voice actor for Mache?

The Japanese voice actor for Mache is Satsuki Yukino.

What role does Mache have in that anime?

In Pokemon XY, Mache is listed as a supporting character.

Mache appears in several anime, including Pokemon XY, Pokemon XY&Z.

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Valerie is the Gym Leader of Laverre City, specializing in Fairy-type pokémon.

Pokemon XY

Pokemon XY&Z

Pocket Monsters Special

Satsuki Yukino

Japanese

Kate Bristol

English

Helena Coppejans

French

Dagmar Bittner

German

Ludovica De Caro

Italian

Kandy Kathy Ricci

Portuguese (BR)

Valentina Souza

Spanish