Grumpy old panda who serves as the strict mentor to Yin and Yang, teaching them the sacred martial art of Woo Foo.
Yin is trained by Master Yo in the art of Woo Foo.
Yang is trained by Master Yo in the art of Woo Foo.
Master Yo and Night Master are opposing leaders in the Woo Foo world.
Carl seeks to defeat Master Yo and his students.
Lina aims to undermine Master Yo's leadership.
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