According to The Hollywood Reporter, Teri Polo, Sarah Jones and KaDee Strickland will play three sisters who run a wedding-planning business.
The trade paper says that Polo will play Jane, the conservative older sister, with Jones as Sammy, the free-spirited younger sis. Strickland will be in the middle as Annie, the natural leader of the group.
Also new to the cast is Michael Landes ("Ghost Whisperer") as David, the company's wedding photographer.
Jon Amiel ("Eyes," "Reunion") will direct the pilot, which will be executive produced by Kelley and Jonathan Pontell.
Polo, best known for her roles in "Meet the Parents" and its sequel, was the lead in the comedy "I'm With Her" and has done recurring roles on shows including "The Practice" and, most recently, "The West Wing."
Jones has recurred on HBO's "Big Love" and Showtime's "Huff," while Strickland has been seen in such features as "The Grudge" and "Anacondas: The Hunt for the Blood Orchid."