Common Voice character's name

日本語版: Common Voiceのキャラクターの名前

This guy. Mars (Hmmm, "Mars"?)
What is the name of the character on and

Also, is this guy a robot?
Is the red one, the blue one and the green one different? What does it mean?
Who designed it?

When Common Voice grows up, will we be able to talk to this guy?

I always read the information on as if this guy were talking.