Junjou Romantica was a late night anime, aired at the same time as most typical otaku series. TnC would definitely be a late night anime for sure. If we're lucky, it might air on AT-X (or another channel), which doesn't censore stuff since it's a satelite channel. I guess the most explicit we can expect is the BL equivalent of Queen's Blade.
The only seiyuu I knew from the game's website was Hikaru Midorikawa, since he used his real name. Looking up '鬼龍院隼人' got me Fukuyama Jun, '何武者' is Tomokazu Sugita, '富士爆発' is Katsuyuki Konishi and '杉崎 和哉' is Taniyama Kisho. At least these 4 are well known enough for me to know them....Some of these fake names are hilarious...
For the PS2 edition, all the seiyuus used their real names. Since Sony doesn't allow any explicit stuff on its platform. I see Kamiya Hiroshi...he's practically in everything nowadays.
Junjou romantica was the first yaoi anime I've seen, I only watched it because I knew it can't be that explicit since it aired on the TV....
