Hi Neil! I'm super anxious to ask this question, because, well, Tumblr is a hellsite, but i'm going for it anyway. My girlfriend and i are already planning our Aziraphale & Crowley cosplays, but I also really loved Pollution. Now my question for you is, as i'm neither English nor American and don't know much about cultural appropriation/appreaciation, black/brownfacing etc. Can I? May I?

I would never stop anyone cosplaying – and @lourdesfaberes doesn’t actually look like Pollution in real life. 

Don’t try and make yourself up to be a member of a race that you aren’t, though. That way lies misery. 

Cosplay at its best seems to me about embodying the things you enjoy about a character and the way they dress and look: I have been loving the African, Filipino, Russian, Spanish, Brazilian, African-American, Japanese, Chinese and Korean Crowleys, Aziraphales and Beelzebubs* that have been showing up on Twitter, after all.

*Why Beelzebub?