It never ceases to amaze me how his appearance changes.  In the same film or in different films. Thoughtful, intent, sexy, angry, wholesome, boyish, desperate...

These four are from The Matrix (obviously).

Below are 2 shots taken during filming of The Replacements and 1 during The Gift.

And in life as in his art, unpretentious, gentlemanly, caring, loving and filled with wonder.

Keanu at the Oscars