Blair Underwood is in talks to join the ABC series Dirty Sexy Money. According to The Hollywood Reporter, Underwood will be playing the well-to-do nemesis of Tripp Darling, played Donald Sutherland.

Tamara Feldman has also joined the cast. The show revolves around an idealistic lawyer (Peter Krause) who goes to work for Darling, the patriarch of one of New York's richest families. Feldman will play the former best friend of the youngest Darling, who comes back and causes controversy for the family.

Look for it this fall on ABC.

UPDATE ... The official press release from ABC:

Actor/producer/director/author Blair Underwood ("Sex and the City") will join the cast of ABC's new drama series "Dirty Sexy Money." Underwood will make his debut as a series regular later this season in a multiple episode story arc, playing savvy, visionary billionaire Simon Elder, a potential nemesis of the Darling family.

Underwood also stars in the upcoming HBO drama series "In Treatment" (March '08) and will reprise his recurring character of Mr. Harris, opposite Julia Louis-Dreyfus, on the Emmy-award winning "The New Adventures of Old Christine." Underwood is currently in post-production on his feature directorial debut, the independent drama "The Bridge to Nowhere" (starring Danny Masterson, Bijou Phillips and Ving Rhames). The film follows four blue-collar twenty-something men from North Pittsburgh who team up with a prostitute to create a high-priced escort service.

In addition, Underwood is producing television programs as well -- the first order of the TLC series "Easy Money" will follow a group of lottery winners in St. Louis, Missouri who went from modest lifestyles to multimillionaire status. He's also co-executive producing the upcoming reality competition "Stage Black" for TV One. His new fiction thriller Casanegra: A Tennyson Hardwick Story (Atria/Simon & Schuster, Inc.) just went on sale this summer. Underwood co-authors the detective novel (and first in the planned series) with best-selling author Tananarive Due and her husband, writer Steven Barnes.

"Dirty Sexy Money" stars Peter Krause as Nick George, Donald Sutherland as Tripp Darling, William Baldwin as Patrick Darling, Natalie Zea as Karen Darling, Glenn Fitzgerald as Rev. Brian Darling, Samaire Armstrong as Juliet Darling, Seth Gabel as Jeremy Darling, Zoe McLellan as Lisa George, with Jill Clayburgh as Letitia Darling.

"Dirty Sexy Money" was created by Emmy-nominated Craig Wright ("Brothers & Sisters," "Lost," "Six Feet Under"). Wright, Greg Berlanti ("Brothers & Sisters," "Everwood"), Josh Reims ("Felicity," "Everwood"), Oscar-nominated Matthew Gross ("Day Break") and Bryan Singer ("House," "Superman Returns," "The Usual Suspects") are executive producers. The series is produced by ABC Studios and will premiere on September 26, 2007.