Whoever the Mystery Man is...

[Berserker]

He is just another Sasuke fanboy who will unconditionally serve him because he is that awesome. People really want their characters to be LAWWWD but there can only be one LOOOORRD Sasuke.

 

[MaGilla]

It's someone that Sasuke would "fanboy" over...hahahahahaha!

 

[chintu234]

Ya lord sasuke who got impaled by a sword to his heart, itachi let him win, B killed him 3 times, cries like a baby, has no resolve what so ever just jumping from one decision to another.
Ya thats definitely a LORD. XD

 

[Dantee]

Most accurate theory I've heard.

 

[Colonel Armstrong]

annoying....