Here is simply a list of banned face claims (I will try and offer sources if I can). This usually involves;
↘ Those who have actively said themselves they don't wish to be used!
↘ Make others uncomfortable when used due to in real life abuse, rape, murder, other criminal offences and such!
↘ Anyone below 18!
↘ 'Real' people, such as yourself, friends, family, normal people and even Youtubers! (That may just be me but this just means I won't put any Youtubers here knowingly, is all).
↘ Any deceased person, recent or old!
This, of course, may not be all the banned face claims and I will try my best to update whenever I see another one. This also means that you should just be careful of negative ties to the person when choosing them, but you can choose them.
~ ~ ~ ~
→ Alicia Danielle Medina - has stated on her tumblr that she does not like being roleplayed. (Source > http://aliciaaadani.tumblr.com/post/21942308259/let-me-make-something-clear-to-anybody-else-who/mobile)
→ Baek Sumin - doesn't like people impersonating her; feels uncomfortable about the whole thing. (Source > http://fy-baeksumin.tumblr.com/post/79614577295/baek-sumin-has-unlocked-her-instagram)
→ Morgan Joyce - dislikes others using her photos, and usually gets their accounts removed. (Source > https://twitter.com/morganjoycexo/status/418964026115096576)
→ Orion Carloto - doesn't want to be RP'd. (Source > https://twitter.com/orionnichole/status/646558886091169794)
→ Suprmaryface / Mary Thomson - extremely uncomfortable with being RP'd. (Source > https://www.youtube.com/watch?time_continue=9&v=3aoglfBZvyc)
→ Ashley Osborn - does not wish to be RP'd; has messaged roleplayers in the past because of it.
→ Jenn Cino - doesn't like her face being used due to issues that arose with her job.
→ Lisa Ruocco - dislikes RP and thinks it's creepy. (Any sources to it has been deleted along with the deletion of her account. However, this does not change her dislike and therefore, you should still not use her.)
→ Millie Ramsey - her parents have asked for others to not use her face for RP (baby fc)
→ Olivia Culpo - I've found her on other people's banned lists, so I will put her here also, just in case.
→ Plum Suicide - has asked not to be RP'd.
→ Sarah (Orzechowski) Urie - has asked not to be RP'd due to personal/life reasons.
→ Sydney Sierota - uncomfortable with RP and her parents don't want her to be used for it either.
→ Taylor Nicole Dean - dislikes RP.
→ Kristina Pimeova - underage; also, her parents have asked for others to not use her for RP.
→ Emma Roberts - physical abuse allegations
→ Halsey - made out with a 15-year-old; also, didn't ask for her consent first.
→ Melanie Martinez - sexual assault allegations.
→ Felice Fawn - promotes self-destructive behaviour; scammed others; seemed to have just disappeared.
Credit (/extra help with evidence/links they've found):
http://dear-indies.tumblr.com/banned
http://x-legacy.tumblr.com/fcs
http://santinorps.tumblr.com/banned
https://www.tumblr.com/tagged/banned-fcs
{Copy and pasted from my other faceclaim books}