I would say I relate to Spock, but not quite as stoic.
I also relate to the character Tegularis in the awesome book "The Glass Bead Game". Apparently the character Tegularis was modelled on the historical figure Friedrich Nietzsche, when the author, Hermann Hesse was asked about it. I'm not as neurotic as Tegularis, but sometimes I feel a low-grade anxiety, especially around people. So many times throughout the book, I felt I was being described, as the character of Tegularis gets developed. It felt quite uncanny.
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"The presence of those seeking the truth is infinitely to be preferred to the presence of those who think they've found it." - Terry Pratchett