Are you talking about the commercial with the girl dancing in the subway with the 3 different hair colors?
Check out this set of pictures on Hair Cuttery's Flickr account:
http://www.flickr.com/photos/haircuttery/sets/72157622516625529/with/4231162573/
And this one in particular:
http://www.flickr.com/photos/haircuttery/4231162573/in/set-72157622516625529/
Her name is Sydney. https://www.youtube.com/watch?v=x72Ayz3C134
Susan Mills is the name of the brunette model eating dinner in the Zales commercial.
Liz from top model
an angel.
Shelley Mack
Nikki Young is the stunning brunette woman in the Eyemasters commercial.
If you are referring to the commercial with the setting of a girl running in the outdoors that is Deb D'Agostino. Deb is a model who resides in New York City.
Dre Davis
It is French fashion model Alexa de Puivert.Stunning, isn't she?
Canon in D
Her name is Alana dela Garza and she is an actress on Law or Order (the original)
Cute Brunette in the Levitra CommercialHer name is Marie Silvia. Deb D'Agostino has done work on Levitra Commercials she is a model from New York City. Not sure if this question relates to the commercials Deb is in.