I figured who he really looks like !!

No... :/ Don't see it...

I knew before I clicked on this thread that you would say David Schwimmer.

He's always reminded me of Jimmy Fallon.

I think he and Tom Hiddleston remind me of each other sometimes. Not straight on but more in a slight profile. Josh's face is fuller, but the cheek bones, to me resemble each other.

Jack Huston

I always thought he looked like a Jewish, Jimmy Fallon?

He has always come off to me as a mix between John Cusack and Skylar Astin.
The way he speaks - and looks when he speaks - reminds me very much of Skylar and his face is just so John Cusack!

So, if John and Skylar ever got a child, it'd look like Josh!

YES I agree!