From PinataIsland.info, the Viva Piñata wiki
Les is the most intelligent character in the entire garden, and the only one who truly understands what Piñata Central is all about. Problem is... he never utters a word. He only talks in strange hoots and sighs, and so no one ever understands him. Even with a voice, no one can understand his advanced speech. To add to his mystique he also has ninja fighting skills and the ability to leap great distances in a single bound. Les also make inventions in his laboratory inside a cardboard box like a jetpack.
First Appearance: Cocoadile Tears
The opposite of Les, this Galagoogoo kept Les' intellegince and can talk,
unlike les. And this piñata really knows that "Les is really mor"!
Quotes- "of course i can talk, and the names not Les, its Mor!"