That is Oscar, named after "Oscar the Grouch", though not grouchy, he lived in a trash can when he was a kitten. From there rescued and lived in a Diesel truck repair shop, a step up to food and shelter, and (human) friends, but he was always covered with black soot. We offered a spot for him with my 10 cat crew (at the time, now we have 12, down from 13, lost one to cancer). He slowly acclimated, brushing daily cleaned his coat, and his best friends are Houdini (in the picture), and Magic (Houdini's brother). Buttercup does not particularly like Oscar, but when Buttercup (my biggest Alpha male) goes after Oscar, my tiniest cat Dusty (Alpha female), goes after Buttercup and chases him away. I do not think she realizes that Buttercup is twice her size!