well post a silvered hair anime guy but he must have a charming look

Zero Kiryu From Vampire Knights
LOVE HIM!!

Toshiro Hitsugaya (Bleach)

Killua Zoldyck..
he's my favorite.. not only in 'hunter x hunter', but in all..
I love him so much..
He's more charming in the series of the anime made in 2011 in comparison to the 1999 one..

A younger Kabuto from Naruto could pull off charming when he chose to. Especially while working as a spy. :)

Kojiro Saeki from Prince of Tennis has silver-white hair with black on the bottom layer of his hair(two-toned)...

I wonder if silver-white is accepted or not???

I love this guy's face.

Sion from Densetsu no Yuusha no Densetsu!

Hummm this one's though, silver hair AND a charmer.

I automatically thought of Sesshomaru from InuYasha. Don't let his bad guy personality fool you, he's really quite sweet to the little girl he protects, Rin. When he started really caring for her that's when he 'charmed' me and made him my favorite InuYasha character.

Seiran from Saiunkoku Monogatari. He's a guy who has a mysterious past and is really protective of the main character girl. He's not a charmer in sense he's a 'ladies man' but in the sense he is so strong, graceful, and sweet.

(pictured below) Gin from Hotarubi no Mori e (anime movie) has got to be my ultimate charmer. Mysterious, calm, cool, sweet, and 'out of reach.'

Hampnie Hambart from Kamisama no Inai Nichiyoubi

Peter white from Alice in the country of hearts! :D

Subaru :)

<3 Labrador!!!
He's a bishop in 07-Ghost

Lyon~

First person I thought of when I read the question ...
Gokudera Hayato from Katekyo Hitman Reborn !

Victor Nikiforov from Yuri on Ice