LOS ANGELES (thefutoncritic.com) -- CBS has settled on the first members of its 2009-10 freshman class: four dramas, one comedy and a reality series.

Dramas "The Good Wife," "Miami Trauma," "Three Rivers" and the "NCIS" spin-off received the official green light today after being approved to begin staffing over the weekend. A fifth drama, "U.S. Attorney," has also begun making offers to writers and is being considered for a midseason order.

They'll be joined by the Jenna Elfman-led comedy "Accidentally on Purpose" and the reality entry "Undercover Boss."

"Purpose" revolves around a San Francisco movie critic (Elfman) who finds herself accidentally pregnant after a fling with a much younger man (Jon Foster). Ashley Jensen, Grant Show, Lennon Parham and Nicolas Wright also star in the CBS Paramount Network Television-based project, which Pamela Fryman directed from a script by Claudia Lonow. Gail Berman and Lloyd Braun also serve as executive producers alongside Lonow.

"Boss" then follows executives at major corporations who go undercover at their own companies in entry level jobs. Eli Holzman and Stephen Lambert are the executive producers for All3Media and Studio Lambert.

The Eye previously gave series commitments to fellow reality series "Arranged Marriage" and "There Goes the Neighborhood," both of which could roll out as early as this summer. Other reality pilots under consideration include "America's Strongest American," "Live Like You're Dying," "Missing You," "Thunder Road" and "The Whole 19 Yards."