An Unearthly Child (no wait, that's Who)

A thought I've had now and then since Buffy was on the air, and now again after reviewing some clips from Space 1999 (which I loved as a kid):

Juliet Landau is very attractive, and yet, she's exactly the kind of attractive that one would expect from Martin Landau and Barbara Bain's kid: "my parents were faeries/space aliens."