Agent Wren, aka Ginevra Catherine Hart, is a notably small young woman, 5'1" and slender, with a small high voice and small timid mannerisms, conventionally quite pretty yet without any singularly remarkable features that would make her face striking or memorable: dark brown hair kept just long enough to mostly hide her face behind, alert green eyes, and a subtle spangling of freckles on her cheekbones and the bridge of her nose that’s typically only visible when she blushes, which is often.  She moves with easy natural grace and precision, with nimble hands and long slender fingers that make short work of feats of manual dexterity.  Her instinctive approach to interacting with others seems to be to keep her eyes open and her mouth shut and as much as possible to never ever be noticed by anyone for any reason, and she bolsters the shrinking-violet aura with a conservative slacks-and-sweaters wardrobe mostly in cloud gray and mouse brown and quiet pastels.  She is never the face or the voice of any group, and unless she’s extremely comfortable with the people around her she doesn’t usually speak unless spoken to.  When she does, her high soprano voice is quiet and breathy and just as timid as the rest of her, and her conversational accent is a very posh Surrey lilt, though in moments of stress a sharp ear might catch a more natural grotty Inner London street brogue hiding beneath.