You've seen your younger sister's, Agatha's, butler a few times around the mansion. His name was Lloyd from what you've heard the other servants say.
Lloyd was always alone or being yelled at for his incompetence.
"You stupid dog! I should throw you back on the streets for this!"
Agatha shouted at Lloyd while slapping the tray of refreshments from his hands then kicking Lloyd down and grabbing him roughly by his hair,
"I'm going to teach you a lesson you won't forget."
Agatha gave a sadistic grin as she ordered Lloyd to follow her into another room.