Ke Nelaid, Roshaun
(The fullest known version of his name: Roshaun ke Nelaid am Seriv am Teliuyve am Meseph am Veliz am Teriaunst am det Nuiiliat / det Wellakhit. Other sequences are omitted in the canon; the formal version of the name ends with the phrase am me'stardet Wellakhir, "Guarantor of Wellakh."1) Heir to the Lordship of the Sun of the planet Wellakh, Roshaun is one of the three wizards who come to live in Nita's and Dairine's basement during the events of WH and WAW.
Roshaun is the only child of Nelaid ke , Sunlord of Wellakh at the beginning of WH, and his lady, Y. Both parents are descendants of a line of wizards who specialized in the management and control of their very problematic marginally variable star, and who in the distant past had saved the planet from destruction when that star flared up. As a result, the wizards of this line are treated as royalty by Wellakh's people, and live in amazing splendor and luxury. But this treatment by their people has considerable ambivalence at its root, so that Wellakhit royalty must be constantly on its guard against the machinations of various political entities which are trying to control their actions by various means...including assassination.
Growing up in this uneasy atmosphere is possibly one of the reasons why Roshaun seems to Dairine, on his arrival, to be so unbearably self-centered and stuck up. Her perception of him is probably not helped by the fact that he is tall and (by both his standards and hers) extremely good-looking...and knows it. With his very long fair hair, emerald-green eyes and chiseled features, Roshaun strongly resembles your average anime prince. (His take on this, though, would be that they strongly resemble him.)
1 Limited translations are given in WH of some of this omitted material. One excerpt is rendered as "son of the Sun Lord, beloved of the Sun Lord, son of the Great King, descendant of the Inheritors of the Great Land, the Throne-destined". From all this, Dairine comes to the annoyed conclusion that the title "Prince" probably suits Roshaun best.