- No disguise skill
- Shapeshifters are allowed as long as they fit the rest of the requirements.
- Stuff they get from classes or other external sources doesn’t count it has to be an ability that every monster of that type has.
- it’s okay if the appearance is only skin deep
- anything that you can find on the srd, archives of nethys, or similar sites is okay including 3pp.
- templates are cool too
So the question is are there any undead that appear to be alive even if it’s only visually.