Jeremy Renner is a man of many talents. He plays a cool dude in the Marvel universe! He has a very questionable but amusing smartphone app! He bothers Elizabeth Olsen with his grumpy demeanor so much that it reminds her of another feline known for her grumpy demeanor! So, yeah: Jeremy Renner is pretty much a dead ringer for Grumpy Cat, but if you tell it to his face, he may flip you off and cause bodily harm to Lil Bub in retaliation.