If there is anyone who is caucasian-like in appearance, it's probably Koreans bcause of all the asian ethnicities they probably the ones who can compete with caucasians in terms of height and build and not look misplaced. This is probably one of the reasons everyone is so fascinated with Korean dramas accross asia. People are probably not used to that kind of appearance. Moreover, many Koreans confuse themselves to be Mongolian because they believe that they look similar--and I find some of my Mongolian friends don't dispute this fact. Yet, I doubt any Korean would seriously suggest that they are part-caucasian or the like.
Keirkoori, you're quoting a mismash of theories that seem to appease what you "want" Japanese to be rather than what actually are. And sorry to burst your bubble, Japanese certainly do not look caucasian or central asian. First of all they lack the powerful build and body type. Also, I have noticed that Japanese faces are rather small and petite, whereas central asians have long and wide faces. I think it best to stick to scientific sources rather than emotional arguments like this.
For those asking for sources on my theories, everyone knows the jared diamond article on Japanese roots from Discover magazine. A link can be found here:
discovermagazine.com/1998/jun/japaneseroots1455/
Jared Diamond is the pulitizer winning author of the books guns, steel germs. He is very well known scholar in the States.
Also, with regard to actual similarites of early Korean and Japanese art, please refer to the following photos of 4-6 Century artifacts:
Gaya Helmet: Korea
flickr.com/photos/pressapochista/216583254/
Kofun Helmet: Japan
en.wikipedia.org/wiki/Image:KofunHelmet.jpg
Silla Sword: Korea
en.wikipedia.org/wiki/Image:SillaSwordHilt.jpg
Kofum Sword: Japan
en.wikipedia.org/wiki/Image:KofunSwordHilts.jpg
Silla Crown: Korea
en.wikipedia.org/wiki/Image:SillaCrownGuimet.jpg
Kofun Crown: Japan
upload.wikimedia.org/wikipedia/commons/f/fe/KofunCrown.jpg
Budha Statue: Korea
flickr.com/photos/pravin8/35484439/
Budhs Statue: Japan
en.wikipedia.org/wiki/Image:AsukaBodhisattva.JPG
More examples can be found in the book by Jon Covell and Alan Covell which I've already mentioned in a previous link.
With regard to language similarities, I think you need an expert knowledge of both Korean and Japanese to have an opinion of this. Anyway here's a post from a turkish guy who compared grammatical features of both languages:
I was exposed a little to Korean and I was amazed by grammatical similarities between Japanese and Korean - particles, word order, endings, politeness levels, etc. The endings and particles are not the same but the pattern is similar and you can map them.
"I go to school":
Japanese (私は) 学校へ 行きます。 ((watashi-wa) gakkō-e ikimas)
Korean: (저는) 學校 (학교) 에 가요. ((jeo-neun) haggyo-e gayo.)
(The grammatical pattern is identical for Korean and Japanese:
(optional: I-topic marker) school - direction marker go - polite ending.
The same phrase in Chinese Mandarin will be quite differently structured:
我去学校。 or 我到学校去。
Wǒ qù xuéxiào. or Wǒ dào xuéxiào qù.
Sorry about the posting the addresses. I don't have enough posts to my name to actually link the pages.
You will also notice that all of my sources tend to western as I find asian studies to be biased to further their own political agenda. Check out this article on the BBC:
news.bbc.co.uk/1/hi/world/asia-pacific/1008051.stm