|This needs a stretch.|
Nora Bingleton is the real name of convention attendee, Princess Garogflotach.
She is a Caucasian female and has long red hair. Her blue costume makes her resemble an alien princess.
She only likes to be spoken to in the alien language of her persona.
Scooby-Doo! Mask of the Blue Falcon
She became the love interest of Hank Prince, and his taking time out to court her led to him becoming a suspect.