For instance, take Green Day's lead singer Billie Joe Armstrong. Totally pulling off the guyliner look.
One of the other band members, Frank Edwin Wright III (aka Tré Cool), not so much.
You know who can pull it off? Dustin Hoffman in Hook. He pulls off looking like a crazed, pirate lunatic. Yet, wearing guyliner enhances this ensemble and creates a believable character. Random aside: Dustin Hoffman is a fantastic actor. He is a close second in versatility to Mr. Depp.
And this picture is just so lovely. It would be a perfect addition to any home. Specifically over the fireplace.
So, my final thoughts on guyliner are this:
Only pirates should be allowed to wear it, because obviously they are the only characters with the ability to consistently pull it off.
Kevin Kline in Pirates of Penzance. Pretty snazzy, ehh? (He just looks Canadian to me. Not exactly sure why.....)
And my all-time favorite, because I just love Jason Segel. :)