That’s Dean Norris! He’s probably best known for his role as Walter White’s DEA brother-in-law Hank Schrader in Breaking Bad (the source of the above gif). You may also have seen him in Starship Troopers, where he looked the exact same despite being 20ish years younger.

Can’t speak for the poster above, but my pancreas decided a couple decades ago to stop producing insulin. So, the “devil I know” will turn my blood into pancake syrup in short order if I’m not careful.