Alexandra "Alex" has short black hair, tan skin and light brown eyes, and appears to be half Hispanic from her mother's side (Alex is the only main character whose father was seen on the show, shown to be Caucasian). She has a taste for Chinese outfits, often seen wearing a Chinese dress to formal occasions. Alex's spy catsuit is yellow. She is an odd mixture of a tomboy and a girly girl, in that she has more of an interest in sports and athletics but also shares her friends' fashion interests, sometimes even to the same extremes as Clover. Alex is also the most naive and absent-minded. She sometimes is a bit slow to some of the figures of speeches and takes them too literally. She also has a bit of a confidence problem, often comparing herself to her friends and thinking she isn't as interesting or pretty as they are.