Not yet
sadly we have not been able too see it yet
His face
No. It is not shown in the movie
Grey or White.
No one has ever seen his face, all the pictures circulating are FAKE! Unless you want to count the 'in the anime people' then you could say, Ayame and Teuchi, the father and daughter who run the ramen shop "Ichiraku Ramen" because in episode 101, they did see it.
kakashi chronicles
No, she is dead.
Yes she is dead, but noone knows how.
september 15
Kakashi's full name is : Hetake, Kakashi
She's unkown, but it's stated in the manga that she died very young.
Sakumo Hatake (or Hatake Sakumo) is Kakashi's father.