GURPS stats or just some random mutants with powers in any game system? There are a lot of random generators for TSR MSH on the ‘net.
Here’s one:
https://sourceforge.net/projects/javamcc/
I know there’s a random character generator for GURPS, but it’s *very* random. The quirks are fun though.
http://ayinger.no-ip.info/NPCGen/NPCGen