As already pointed out by microlith, "the best thing about Kanji, is that it's easy to pun with," and Tenchi Muyo! puts this quirk of the Japanese language to good use. In fact, most of the Tenchi Muyo! characters have Telltale Names, in the grand tradition of Charles Dickens. When taken as a series of Kanji, their names often reveal some of their character traits, or sometimes create an amusing contrast (like a giant named "Tiny"). Here's a list:

Tenchi = Heaven and Earth
Masaki = Justice Tree
Ryoko = Spirit Summoner
Ayeka = Delicate / Empty Flattery
Sasami = Beautiful Seaside
Kiyone = Conscience
Mihoshi = Graceful Star
Washuu = Eagle Feather
Kagato = I-Who-Am-As-A-God
Nobuyuki = Happy Devotion
Yosho = Ancient Light
Tsunami = Wise, Charming Harbor
Azaka = Flatterer of Kings
Kamidake = Wildfire
Jurai = Thunder Tree

Kanji-by-kanji meanings can be found at