The Big C's Cathy Jamison will be adding one more member to her medical team, as Alan Alda has signed on for a guest appearance in Showtime's dark comedy, according to Deadline. Alda will play an oncologist that Cathy sees after receiving a failed treatment for her melanoma. Joining Alda in the cast will be Hugh Dancy, though Dancy's role has yet to be specified. Alda is best known for playing Hawkeye Pierce on M*A*S*H and is currently[...]