In looking for some plastic, 28mm scale cows for my Fallout game, I found this site;
Or more specifically, this part of it;
Go peek over the rest if you want, I'd advise is.
But the second link has stuff that I'm sure Mort alone would find a good use for.
Now to mention it has a good-looking model of a cat.. (I have been looking for a while, most just get lazy and sculpt them led down, or too chubby to notice the legs)
Some of the details on the humans seem a bit scruffy, but all in all, the models are very nice and characterful.
*Just peered over the "Future Warrior 28mm" section to find many em4 models*