these are somewhat in the order of their appearance in the OVAs.

Name: Gyoshuku
Pronunciation: gee-yo-shoe-koo
Hair Color: Dark brown
Seiyuu : Sakamoto Chika

We learn Gyoshuku is Hotohori's great-grandson, and Boushin's grandson. He also is a child emperor surrounded with advisors instead of family members and greatly pressed upon by his responsiblities. Meeting Tamahome of the Suzaku seishi tale is seen as a highlight to the young emperor.

***SPOILER WARNING*** (for OVA1:2)
(highlight to read)
it turns out that Gyoshuku was only part of an elaborate illusion made up by Tomo on behalf of Tenkou so as to slowly make Tamahome go crazy.

Name: Kaen
Pronunciation: cayene (like the pepper)
Hair: Reddish-brown
Seiyuu : Sato Akemi

In the first OVA series, Kaen is the girl who meets Tamahome in Koutu country. She apparently has sexual abilites akin to Soi's and even refers to her when speaking of the ability.

**SPOILER WARNING** (for OVA1:2&3)
(highlight to read)
It turns out that Kaen is really acting as a vessel (like the Nyan Nyans do) for Tomo's spirit, who Tenkou has called back to serve him. But, alas, all does not bode well for the Painted One again, and he is killed by Tenkou when Tomo's illusion is seen through yet again. As for the real Kaen? noone really knows who she was, or why she was picked to act as Tomo's vessel...

Name: Tenkou
Pronunciation: ten-ko
Hair Color: White
Seiyuu : Kosugi Juurouta

Tenkou is the main bad guy in the OVA series. He, if you can believe it, was Nakago's boss and is even more evil and more powerful than Nakago. Sounds scary doesn't he?

***SPOILER WARNING*** (for OVA2:6)
(highlight to read)
Tenkou apparently was a prince in ancient Japan who learned of the Four Gods book and of the power to be found within as one of the four gods. To figure a way into the book, etc Tenkou began practicing the "dark arts" for which he was beheaded. His spirit became enraged and became stronger until the four gods had to seal him away from the world. apparently it didn't work. He also went a little nuts thinking himself a god when he really wasn't. Tenkou's plan to use the four gods power laid in the ability to gain negative energy released during the beating down of people who loved eachother. His plan...use the Suzaku seishi and their Miko to produce this energy and he'd just have to sit back and watch it accumulate. it almost works, until Miaka and Taka make the ultimate sacrifices to call the Four Gods to banish him.

Name: Sukunami Taka
Pronunciation: sue-kue-nah-me tah-caw
Age: 19
Height: 178cm ~5'10"
Hair Color: Black with blue highlights
Eye Color: Grey
Blood Type: O
Seiyuu : Midorikawa Hikaru

Taka is the reincarnation of Tamahome in Miaka's world. He has a faint memory of being a seishi in another life and of protecting Miaka, but other than that he has no memory of his previous life. To regain his memory, he must collect seven orbs of memory from each of the other seishi, alive or dead. If he does not, he will cease to exist as Taka in the real world. To know what happens with Taka, go here (read the spoiler)

Name: Shigyou Ren
Pronunciation: she-gee-yo ren
Hair Color: Greyish-purple
Eye Color: Greyish-purple
Seiyuu : Ishida Akira

Ren is a new student at Miaka and Yui's school in the second OVA series. He is extremely popular and has plans for the direction of the school and its students. Also, he is leader of a bunch of kids who threaten Miaka and Taka.

**SPOILER WARNING** (for OVA2:3)
(highlight to read)
Ren, apparently, can make people follow his every whim...like making them try to kill Miaka. He does all this for Tenkou who saved him and his sister from a horrible death. "His sister??" you ask. yup, Miiru is Ren's sister. she's also his lover. "Lover?...sister?" yup, they had an incestuous relationship which they were ran out of their town for, and summarily killed because of. This all happened in the past (past book world or real world? -- i think it's real world), where Ren was known as Renhou. well, Ren and Miiru don't get a happy ending this time either, as Ren is killed by Tenkou for failing in his mission.

Name: Kamishiro Miiru
Pronunciation: kah-me-she-row mear-ru
Hair Color: Greyish-purple
Eye Color: Marronish-purple
Seiyuu : Amano Yuri

A student at Keisuke, Tetsuya, and Taka's college. She has an interest in ancient chinese mythology and joins Keisuke's ancient chinese mythology club. she also believes keisuke's story about his sister entering a book and becoming a miko.

**SPOILER WARNING** (for OVA2:3)
(highlight to read)
Miiru, as it turns out, has special powers over blood and can make "blood dolls" through which she can control a person. Very vampire-esque. She also turns out to be Ren's sister and lover. Back in their real time (i think real time), they were persecuted for their incestuous relationship and thrown off a cliff to die. I think it was then that Tenkou found them and convinced them to work for him. (if any of this is wrong, let me know) Again, Miiru and Ren do not get their happy ending and are destroyed by Tenkou for failing, although, both of them do get redeemed when Tenkou is destroyed by the Four Gods.

Name: Boushin
Pronunciation: bow-shin
Hair Color: Brown (like his father's)
Eye Color: Brown (also like his father's)
Seiyuu : Yajima Akiko

Hotohori's son from his Empress Houki, and future emperor of Konan country. Since his birth, Boushin has been isolated from his mother due to her mourning for Hotohori. It is because of this isolation that Boushin has never spoken to anyone, it is only through his father's love and Taka's kindness that Boushin learns of his father's love for him and begins to talk.

Name: Cho Rokou
Pronunciation: Cho Row-ku
Hair Color: Blue
Eye Color: Green (i think)
Seiyuu: Inoue Kazuhiko

Apparently Rokou thinks he isn't worthy of his family, etc, thinking himself weak compared to his siblings Nuriko and Korin. So he has this inferiority complex-thing going, so when Miaka and Taka show up wanting Nuriko's orb, he refuses saying (basically) "i'd rather die then give this up to you!" Okay, Rokou's main problem is that he shuts out the suzaku seishi saying that they left Nuriko on that snowy mountain somewhere in the north. Until Rokou accepts Nuriko's fate and that it was honorable and good, and that he himself has strength within him, he cannot open himself upto people again. (wow, that was a lot of pronouns ^_^)

Name: Hikou
Pronunciation: hi (i as in fish)-ku
Hair Color: Blue
Eye Color: Brown?
Seiyuu: Wataru Takagi

Hikou was Chichiri's best friend who assaulted Chichiri's fiance, Kouran. She then refused to marry Chichiri saying she was dirty and had betrayed him. Chichiri, of course, went to confront his "friend" and they got into a major fight. Hikou died as a result of this. He is back as a minion of Tenkou to get revenge on the man who killed him.

**SPOILER WARNING** (for OVA2:5)
(highlight to read)
Okay, now the sad part. All Hikou did was steal a kiss and an embrace from Kouran, but she was a very proper girl, so she felt she had to break off her engagement to Chichiri. All Chichiri knew was that his fiance broke thir engagement after an "incident" with his best friend Hikou. Naturally, a fight insued, but so did a flood which ravaged Chichiri's town of Sohryu. Kouran and Chichiri's family died in the flood, while Chichiri faced off with Hikou. Due to the high velocity waters of the flood, a situation occured during their faceoff: Hikou was going to be washed off the edge of a cliff, but Chichiri caught his hand and tried to hold on. While struggling to save his friend, a log came rushing towards Chichiri threatening to hit him in the face....so, Chichiri reflexively let go of his friend's hand to guard his face from the high-speed log and failed. As a result, he lost his friend and his eye in the same moment.
Now, Hikou returned due to Tenkou's magic to pay revenge upon Chichiri by taking those he cares about...starting with Miaka. Hikou is granted a type of water magic which brings out peoples' latent darker sides. Tasuki is affected by this water and almost rapes Miaka and attempts to kill Taka. But, due to Chichiri's strength of character, emotions, and devotion, Hikou is not only defeated, but his soul is saved and allowed peace at last.

Name: Yosui
Pronunciation: yo-swe
Hair Color: Brown
Eye Color: Brown?

Yosui is the last of the ShiTenOu (Four Kings of Heaven).

***SPOILER WARNING*** (for OVA2:6)
(highlight to read)
It turns out that the Tamahome that returned in the end of OVA2:5 was really Yosui who had received the memory orbs ripped from Taka by Tenkou. Since he had all of Tamahome's memories and experiences, Yosui felt, in every sense, that he was Tamahome. Of course, no one knows that the Tahmahome that appeared is really a misguided Yosui and they accept him (if tentatively) into the group. When faced with both men, one is her first love and the other her current love, Miaka is forced to make a decision between the two. It is at this point, that Miaka comes to terms with the fact that she's grown to love Taka for who he is, not just as a reincarnation of Tamahome. With her choice of Taka, Yosui/Tamahome is understandably angry and resorts to physical means to make Miaka his, so a fight ensues between Yosui and the now returned Taka. Yosui has all of Tamahome's old powers, while Taka has only his love of Miaka to get him through. So, to make a long story short...Yosui fires a MAJOR ki ball at Taka which Miaka takes full-on and basically, dies. Taka then realizes that they shouldn't be fighting and that Yosui is just another part of himself...a part he lost, so he confronts Yosui and through his accepting of Yosui as a part of himself, absorbs Yosui and becomes the true reincarnation of Tamahome: body, soul...and now memories. pretty cool, huh?

And just to clarify, as i've gotten many questions on it, Miaka dies in front of Taka, Taka absorbs Yosui, Taka then surrenders his body to be with Miaka, and it is through this surrender and the love between Miaka and Taka that the two of them are able to call Suzaku and set things right. It is then that Taiitsukun grants them the ability to be placed back into their physical bodies (they are spirits), but they are given the choice of going to the book world or the real world. they choose the real world with the seishi's blessings. then they get married, have a kid (a boy named Hikari IIRC), and all is happy. ^_^