Who is that guy?

If you met these two people on the street, would you be able to tell them apart?
My sister did a great post about my dad on veterans day. As part of it, she dug up an old picture of him in his uniform (she says ‘Navy’, I thought he was in the coast guard on tender duty, but I could be wrong). I actually haven’t seen this picture before (or if I did, I forgot about it), and I was immediately struck with the “Hey! That’s me!”
A little Gimp cutting and pasting, and there you have it.
Yes, I think this confirms it. I’m proud to say that man is definately my father, and I’m his son.
By the way, the source of the right hand side of that picture is this picture from when I was about 20, circa 1983.