David E Kelley has signed Cinderella Man's Craig Bierko and MARRIED WITH CHILDREN's Katey Sagal for the new season of Boston Legal. Bierko and Kelley previously worked together on the hit show Ally Mcbeal. The actor will play JEFFREY COHO, an "intense, grandiose" criminal defence lawyer representing a client (Ashton Holmes) who is accused of murdering a judge. Kelley says, "He's so versatile. How many guys can play both (Cinderella Man's) MAX BAER and THE MUSIC MAN?" Bierko was nominated for a Tony award in 2000 for his portrayal of PROFESSOR HAROLD HILL in the Broadway revival of the classic musical. Katey Sagal, who most recently had a recurring role on Lost, will play the accused client's mother in several episodes, which will be written by Kelley.