Does anyone know who mmc820 in the portrait gallery is? Reverse image search didn't yield anything, so figured I would crowdsource it in order to find the larger picture. Thank you!

I believe that's Shane Claiborne.

OMG, IT IS! Thank you so much! <3

If I can piggyback onto this thread, if anyone can identify the actors/characters for mfw545 and ffs356, it would be much appreciated.

mfw545 - image is from Outlander, but I am not familiar enough with the series to narrow it down further -- here's an uncropped version of the image, if that helps:
https://cdn.images.express.co.....jpg?r=1577146383892

Yes, that certainly helps.  I should be able to hopefully track down the actor/character from there (assuming he's not just an extra only in that one scene).  Thank you!