Actress who starred as Marla Hendricks on the Fox series Boston Public. She also won an Emmy Award for Outstanding Guest Actress for her recurring role as Adele Webber on ABC's Grey's Anatomy. Her film credits include Waiting to Exhale, The Preacher's Wife, For Colored Girls, and Crash.
She earned a bachelor's degree in speech and drama from the University of Houston, then went on to receive a master's in theater from Brandeis University.
Early in her career, she played the role of Lorell in the Broadway musical Dreamgirls, which was loosely based on the mo-town group The Supremes.
Her mother Eunice O'Neal was a beautician, and her father James Devine was a laborer. She was married to Lamar Tyler from 1973 until 2008. The couple had one son together. She then married Glenn Marshall.
She co-starred with Alfre Woodard in the 1998 film Down in the Delta.