Leonardo DiCaprio.

He has way too many hit movies on his resume to never have won an Oscar.

Catch Me If You Can/ Wolf Of Wall Street are both mega CLASSIC.

Jason Momoa, could be the next Dwayne Johnson type action star. Liked him as the new Conan.

And Blood Diamond, Shutter Island, Django Unchained, The Departed, Inception, it's ridiculous how many awesome movies he's been in without ever winning an Oscar.

mark ruffalo

Erika Toda from Liar Game, Death Note, and Keizoku: SPEC 2.  She was brilliant in SPEC 2 as a smart-ass, slovenly, eccentric genius/detective.

https://www.youtube.com/watch?v=G27PFeicH5w

Glenn Close and Richard Burton never won one either. Doesn't meant hey are held in any less regard. DiCaprio gets a lot of recognition. 

Michael Keaton defiantly deserve the Oscar in my opinion!

He really looked the part. And he was a lot truer to the character than Arnold ever was.

Michael Madsen, very good actor, but he accepts too many trash movies.

He could have been one of the big ones with better agents and managers.

He really messed it up.

Jason Flemyng - good in most things I see him in but never a staring role. But maybe that is why he's good. He seems to be doing more and more British productions while Jason Statham is now Hollywood B-list. Oh and Statham too but he's typcast himself (a good choice but still).