Altheia stands at 5'6 and has a lean, medium build. Her blonde hair reaches down to the middle of her back. Most of the time it hangs free over her shoulders, but when she is working it is help up in a ponytail. Her eyes are a deep blue. When she isn't working she usually wears jeans and a t-shirt of some sort, but when she is working at the hospital she is in her scrubs.
Altheia is a calm and collected woman at all times because things can get quite hectic at the hospital on any given night and if she wants to save someone she needs to be able to think clearly and focus on the task at hand. She also has been known to be a quick thinker and able to come up with a solution to something at the drop of a dime. It's also important to her to act and "be" as ordinary to anyone around her as much as possible because she figures if anyone finds out what she can do she'd probably be a target and that is something that she doesn't want or need.
However. When and/or if she gets the chance to save someone that desperately needs it and deserves it she doesn't hesitate to do so, but that is ONLY if she knows she won't be caught using her abilities.
Her most personal belongings are a watch her mother gave her, which she wears at all times, a necklace with a small star sapphire charm that her father gave her when she was little, and a book of poems that her brother had given her when she graduated high school.