Some are comfortable "winging it." This has always been my favored approach, and in both Six Seasons in Sartar and The Company of the Dragon I included systems to help other GMs whip up NPCs as needed nearly on the fly. Other GMs, and especially ones new to Runequest and or to gamemastering, might prefer fully fleshed out NPCs.
Well ladies and gentlemen (and any of the four other Orlanthi genders), have I got the product for you.
QAD: Pimper's Block The Complete Collection is the kind of product we have not seen in decades. The only thing I can think to compare it to was William Keyes' Rune Masters back in 1980. It is, well, a collection of ready-made characters. But while my last sentence was substantively true, calling Pimper's Block a "collection of characters" is like calling Mt. Everest a "hill" or the Sahara a "few grains of sand." This is a collection of characters the likes of which no one as ever seen before. Let me just quote you the contents;
Prax Bison Tribe
Prax Impala Tribe
Prax High Llama Tribe
Prax Pol-Joni Tribe
Prax Sable Tribe