Todd Rippon was a Harad Leader 1 in Lord of the Rings: Return of the King. Obtained through the mail. He's been in Xena and Hercules as well as Shortland Street.  He is a nice guy who mentioned this cool information:

"There were only two Harad Leaders. When Legolas single-handedly brings down the Mamukil, I'm the Harad Commander steering the great beast.  The special effects team also took a computer rendering of the other leader and I and composited us onto all the Mamukils to give the impression that there were lots of different riders."

   This is the sort of thing I love as a makes the hobby fun.