Although Clio appears to be little more than a beautiful woman behind the counter at the trendy coffeeshop Leo and Clio, she is actually something much more powerful. A person with even a rudimentary ability to view the supernatural can clearly see that Clio is no mere human, but something far more ancient and powerful. However, she never even acknowledges any inquiries to this nature, and seems perfectly content to whip up cappuccinos and lattes for Greenwich Village’s trend conscious inhabitants.

However, she is not averse to friendly conversation, and is willing to sit down and talk with just about anyone, time permitting. She has an eerily insightful personality and never seems to be short on relevant advice. She has a near perfect recollection of historical events.