It seems not many people play LL using the OEC (Original Edition Characters) supplement, but if you want to give it a try with your gaming group, you can generate some random characters:
http://smolderingwizard.com/2015/02/20/labyrinth-lord-oec-character-generator/
The free, no-art PDF of the OEC rules is available in Dan's store:
http://goblinoidgames.com/shop/roleplaying-games/original-edition-characters-no-art.html