That’s right, even Uncle Phil was a Klingon. Although James Avery only made one appearance on Star Trek, his role was pivotal to ‘Trek canon as a whole. Along with Brent Spiner portraying Data’s ‘ancestor’ Dr. Arik Soong, Avery’s character finally explained why the Klingons from The Original Series looked so differently than those of The Motion Picture forward. Of course the real reason had to do with budget and makeup technology limitations, but I think the retconned explanation was pretty clever.