Yes, the range was Microuniverse, sadly not continued beyond the first half of series 3 [Martha] and a useful source of things you couldn't have done otherwise.
As indeed was the Black Tree range in its day, but as noted above the quality was VERY variable. Usually good on creatures, not so good on human characters,especially those lacking the visual "cues" of a distinctive costume. The Liz Shaw figure was possibly the worst.
It didn't help that I was still painting in Humbrols then, and I've been doing partial repaints,especially skin, to try to shake a bit of life back into them.