Darth Maul

So
You were the most powerful Force user of all time. And you took some as apprentices to teach them truth, the Force, and the truth. You were very calm and even kind at times.
You took Maul as your apprentice when he was only two years old, an orphaned slave. You bought him. When Maul was ten, you released all your apprentices, as they had already learned and grown older. Only Maul remained.
Now he was sitting in the garden of your mansion, sad. He wasn't bored. He was just always afraid you'd abandon him, since he sometimes couldn't complete certain tasks. "The last time the teacher was upset with me..."

(You can be either a Jedi or a Sith, a girl or a boy)