Rodzinski, it wouldn't surprise me if he dressed in his "best known as" part so that he'd be "best known" at the event. It might help conjure up a misty memory for someone, "Oh...yeah...uh...yeah...a...you're that...guy..."
Sometimes you get some pretty sad cases. There are a couple of guys who come dressed in their full cowboy regalia, no one knows who they are (Z cowboys from B westerns, I guess), but you could shoot rabbits with buckshot in front of them and not hit anyone, so sparse is their little corner of the show. You just sort of pass by them and try to avoid eye contact. Because even if you stopped, you'd have nothing to say to them..."Hi, I don't remember you. I never saw anything you were in that I remember. Who are you? Why are you here? Does your mother know you're out, Cecila?"
However, sometimes you spot someone truly interesting who has no one around them. I found Britt Lomond this way. He is the guy who played the evil commandant on the Disney Zorro TV series and was really an engaging fellow and nice man. And as I recall, was in real life an very good fencer. I bought and had him autographed a great picture of him crossing blades with Guy Williams.
And speaking of Guy Williams, this can tell you something of the absurdity levels to which these shows can descend. Guy Williams, Jr. frequently appears at these shows with dad's cape and hat and sword but as far as any of us have been able to determine no discernable talent or justifiable fame of his own. He is merely Guy Williams' son. I don't know whether he signs his dad's pictures or what. It baffles my ken of understanding.