Nope, … nothing to do with John Wayne.

Nope, … nothing to do with John Wayne.

Billy Two Hats 
No

He he, it seems our lead is not so easy to recognize from behind …
Lee Marvin in The Spikes Gang?
That’s got to be it but talk about an obscure film…
Hallelujah !!!
Yes, finally it is ‘THE SPIKES GANG’ 

It’s a very good little film though. Watched it on a Marvin run a couple of years back. Ironically I recognised him from behind in the third picture and not the final one 
Moving on
Two-Lane Blacktop
?
Could it be a Burt Reynolds movie ? 
Looks like Bud Spencer
Un piede in Paradiso?
Is the hairline that iconic? 

Poor Burt
Could have easily been Henry Silva or John Saxon, for the same reason
‘Stick’ (1985) 
That’s correct
This movie stars another ‘follically challenged’ actor

Just going to throw Shalako in there