Re: Aliens with one name vs. aliens with two names
Mc or Mac in names literally means "Son of", so Ronald McDonald is Ronald, son of Donald.
Pritchard is another - son of Richard.
As for Spock, I always think of him as Spock Sarekson.
"Weaselling out of things is important to learn. It's what separates us from the animals - except the weasels" Homer Jay Simpson