Casey Affleck & Summer Phoenix Expecting

A rep for actor Casey Affleck, younger brother of Ben Affleck, confirmed today that the Ocean's 13 co-star and his wife, actress Summer Phoenix, are expecting their second child, due sometime this winter.

''They're very happy and excited about the new addition to their family,'' the rep told reporters. Casey, 32, and Summer, younger sister of the late actor River Phoenix have been married since 2006. The couple already have a 3-year-old son, Indiana August.

Casey co-starred with another of Summer's sibling's, the two-time Oscar nominee Joaquin Phoenix, in the 1995 Nicole Kidman satire To Die For.