Who is The Albino from The Princess Bride and what is their importance?

The Albino is the caretaker of the Zoo of Death. He is the only other person allowed to enter the Zoo besides Rugen and the Prince. The Albino does not speak often, but after Westley has spent some time chained in the fifth level the Albino tries to aid him. The Albino says it would be better if Westley just did what the Prince asked of him.