God
God is the supreme being and the creator of the universe and all within it.
God's Final Message
After discovering that the people of the Universe were rather unhappy with their Universe, God set out to make sure they understood He hadn't purposefully tried to screw with them. And so He wrote the following message on a mountain for anybody within range to see:
WE APOLOGISE FOR THE INCONVENIENCE.
The message eventually became a tourist attraction.