Though I was born and raised in Japan, I've spent more than half of my life in ths U.S., and I don't have many experiences meeting Japanese wrestlers in person.
The only ones I've actually talked to are:
Osamu Nishimura
Tiger Hattori (New Japan ref)
Tajiri
Antonio Inoki
Nishimura didn't seem to enjoy when I talked to him at ECW Arena. Both Hattori and Taijiri seemed to be nice.
Among them, I talked to Inoki the longest. My friend's boss with whom Inoki was doing business at the time introduced him to me. Unlike his character in the ring, he seemed to be very shy and didn't even look into my eyes long enough to scare me. No aura whatsoever. Still, he's my favorite wrestler.
My wife and I had a dinner with Dory Jr & Marti Funk if you count him as a "puroresu" guy. They were very nice and told me a lot of stories.
There may be more, but I can't remember right now.