Lol, you mentioned Johnny Depp, but he's HAD a hair transplant in the frontal region which was quite effective.
Good ones: McConahey, Slater, Clooney, Damon,
Bad: Cage (density issues), caan (needs to let it go gray),
ok: billy crystal, letterman, biden, sting, fraser, kimmel????,
wigs: travolta, affleck, billy bob thornton
recent: burt reynolds, elton john. They may wear systems in the back so hard to tell
--....about one third of all famous guys in movies and films have had work. Before and after pictures dont lie. More hair? HT.