aboutjensen:

“My part was so small that I didn’t even have a name.  But the cool
part is that Jensen called me and another actor by our real names while
going over the scene.  This may seem insignificant at first, but to
actors, this is quite remarkable because you will rarely see the star of
a regular series—who meets minor actors all day every week—know
anyone’s names if they’re not a series regular.  Hell, I’ve had
directors who didn’t know my name.  There is no practical reason for him
to know our names if it’s only for a few hours.  They usually just go,
“Okay, so you have to—” and so on. 

During rehearsals, Jensen came up to me, called me by my first name
(and he didn’t have a script in his hand to refer to), and gave me some
great pointers.   He did the same for the other actor.  After we shot
the scene, on our way back to our trailers, the other actor quietly
remarked to me how amazed he was that Jensen had known both our names.
We talked to some crew members about it and they all went on about how
down to earth, humble, and grateful Jensen was to have a series.  When I
told my girlfriend about it, she fell in love with him a little bit, so
now a part of me hates him, too.  (Kidding!) “
-Paul Bae
Source: http://yousucksir.com/post/86561391660/who-did-you-play-in-supernatural and https://twitter.com/MrPaulBae/status/658296352774950912