User blog comment:Xilinoc/Ch. 597 - Winded by the Shadow/@comment-24384892-20140918224717/@comment-11051098-20140920224513

Good point. Or it could be that the long part of his hair goes beneath the cloak to the right just outside of the frame, if the 495 guy is Nianzol.

It could be one of the 2 remaining unknown Ritters, it could be Askin with fuzzy hair at the time - options.

Also, Kubo could have done all this on purpose to make us wonder about the 495 guy's identity, as he could potentially be one out of 4 possible Sternritters (at the moment, counting Nianzol, Askin and the 2 unknown).

Speaking of Rukia's unknown opponent in the first invasion, that could have been anyone.