Was diagnosed with GHD as a child; GHD is the reason for his short stature. He was signed to an acting contract at the age of 23 because he looked like he was 12 years old.
One of the greatest compliments I've ever received is when a fan told me I should have played the young "Emperor Palpatine" in the Star Wars Prequel Trilogy...because, he said, it would have been such an apt follow-up to "Isaac".