Dear Dark Shadows,
Is your brother a fan of the original Star Trek? (Gawd, I wish I didn't have to call it that. For me, there is ONLY ONE Star Trek. Not that I'm a fanatic about it, or anything.)
If so, I wonder whether he might have noticed a resemblance between Joan in the City on the Edge of Forever (Harlan Ellison script, Emmy nominee) and Lara Parker in her Cassandra persona. I've noticed that as well. Of course Lara Parker wins for dishiness and camp elan hands down.
I did see a photo of Joan taken at a party recently that reminded me of Grandmamma Edith Collins in 1897. Maybe your brother was at that party??
Gothick