Leader of the people

Look at Martin Sheen for a while, I got some marching to do.

Ahem: middle-aged Martin Sheen in a vest holding a stick is my Kryptonite.

Ditto Martin Sheen on a dark street corner in autumnal New Hampshire. If I'm not mistaken, in this important flashback scene with best pal Leo, he is also wearing boat shoes. Boat shoes! May that trivial yet delightful factoid console you as needed.