Alexandra Cabot from 'Law & Order: Special Victims Unit'

A lot is riding on Michelle Obama's fashionable coattails.

Women started copying her look when she wore that black-and-white dress on The View. She dares to go without pantyhose and has the toned arms to carry off sleeveless dresses, even in the most formal of settings, such as when her husband addresses a joint session of Congress.

Her casual elegance is having a ripple effect throughout the country, even on TV characters.

A certain kind of guy loves that Rat Pack look: the lean silhouette, the starched shirt and the skinny tie, usually loosened after a hard night of partying.

Special Agent Anthony DiNozzo on CBS' NCIS, airing Saturday, March 28, is one of those guys, at least as far as the look goes.

When Roselyn Sanchez reflects on her character, FBI agent Elena Delgado on CBS' Tuesday series Without a Trace, she focuses on her being a single mom, a Puerto Rican from the Bronx.

One of the many lovable aspects of Julia Louis-Dreyfus' portrayal of a scattered single mom on CBS' The New Adventures of Old Christine is that she dresses like a working single mom.