We know that Spock is biologically half-Vulcan but to me he looks just like full-Vulcans. B'Elanna Torres is half-Klingon and half-human, but in her case you can tell; the Klingon traits like head ridges are about 50% of what they would be were she a full-Klingon. So, shouldn't Spock have only kind of pointy ears, sort of slanted eye-brows, slightly green blood, etc. instead of simply looking just like a full-Vulcan?

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    Perhaps he has his father's ears and his mother's pancreas, or something. – Molag Bal Jun 8 '16 at 0:58
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    I have the sense that, early on, non-Spock Vulcans tended to have much more dramatic eyebrows (see, e.g., Sonak from TMP), but that this was toned down in later movies and TNG-era Trek. This may just be confirmation bias, though... – Micah Jun 8 '16 at 1:08
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    I think Spock was originally conceived as fully Vulcan and re-imagined as half-human somewhere in the first season. "This Side of Paradise" (something like ep 24 of season 1) contains dialog in which Kirk points out his half-breed nature. However, in "Balance of Terror" (ep 14), Lt. Stiles' comments about Spock's resemblance to Romulans implies that Spock is pure Vulcan. – Anthony X Jun 8 '16 at 3:49
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    Note that not all genetic traits "mix", many of them fully reflect the genes from only one parent. – Todd Wilcox Jun 8 '16 at 13:00
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    @AnthonyX: Spock references his human heritage in the second pilot, Where No Man Has Gone Before, just after Kirk surprises him with an unexpected chess move: Kirk: "Certain you don't know what irritation is?" Spock: "The fact one of my ancestors married a human female..." We learn later, of course, that the ancestor in question was his father. :-) – T.J. Crowder Feb 10 '17 at 9:16

In the original Star Trek, Spock's appearance was simply that of a human with oddly trimmed eyebrows, green-tinted skin, and pointed ears.


In contrast, his father Sarek has much heavier eyebrows, much more oddly pointed ears, and a heavier coat of green makeup which additionally gave his skin an uneven quality.


When I first saw the episode "Journey to Babel," in which Sarek appears, as a kid, I was immediately struck by how much more alien a full-blooded Vulcan looked than Spock.

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    Maybe it's just me, but from the photos you're showing it is not directly obvious to me that Sarek's ears are "much more oddly pointed" and that he's wearing a "heavier coat of green makeup". – Emil Jun 8 '16 at 7:22
  • Also the skin thing could be explained with age. After all, he is Spok's father. – user1129682 Jun 8 '16 at 8:04
  • @Emil I think the "makeup" might even be just imagination based on the lighting. But his ears are clearly not as straight as Spock's. Just compare the outer edge. Of course this might be unintentional and also based on camera angle, lighting, etc. – Mario Jun 8 '16 at 8:07
  • @Emil Ears and Eyebrows are much more pronounced. You can't see his eyebrows well in the above picture, because they're grey. They almost touch his hairline, while Spock looks like he just plucks his eyebrows' outer halves. – user311362 Jun 8 '16 at 14:47
  • @Mario The pictures in the answer were just ones I found randomly on the Internet. They are not necessarily reliable depictions of Spock's and Sarek's skin colors in the original broadcasts. The original Stark Trek episodes have been competely remastered, and they made "improvements" to much of the makeup work and special effects. It would not surprise me if they played with Sarek's skin tone to make it closer to the more understated makeup they used on Mark Lenard in post-1960s appearances. – Buzz Jun 8 '16 at 20:26

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