They are Rhaegar and Victarion Greyjoy. Also, I think you should call this "A Song of Ice and Fire" characters, as some of these never appeared in the TV series and some others have different names.
Why is this ridiculously selective about show and book characters? Some characters that are exclusive to the books ARE here, such as Quentyn Martell, yet Doran Martell is not on this list at all.