Saw an old thread testing people's knowledge on a who's who in the Sanford & Son "universe".Looked pretty fun. Some names I don't recall seeing so I'll throw em here:

Spare Rib Tolbert
Gabriel Gordon
Kurt Taylor
Juan Diego Lopez
Lt. Driscoll
Mr. Sanderson

gabriel gordon-played the horn at the night club. bald guy.
kurt taylor-so-called comedian at same night club as gordon.
juan diego lopez-"i didn' know that..." (i think)
Lt driscoll-Lt at the local police department. two episodes, i think.

can't place the other two.