Six of the network's seven returning dramas are adding new regular or recurring characters this season in an effort to "allow new entry points and storytelling," as CBS Entertainment chief Nina Tassler puts it. Only "CSI," TV's top-rated drama, will keep its cast the same (and even it incorporated some new blood last season).

Sanchez will be joining the cast of "Without a Trace," playing a former police officer who joins the FBI missing persons team headed by Jack Malone (Anthony LaPaglia). She's coming off a starring role in USA's "Kojak" earlier this year and has also appeared in ABC's "Dragnet" and the feature films "Boat Trip" and "Basic."