He's in very heavy makeup in Guardians of the Galaxy (and his blink-and-you'll-miss-it cameo in Captain Marvel), and while you can get a good look at his face in The Hobbit, his character doesn't get much screentime and isn't especially prominent - and indeed I don't think the Hobbit trilogy really turned any actors into household names which weren't already.

I love Lee Pace but there really hasn't been a blockbuster where he's front and center.