Best known for his role as sex-machine private detective John Shaft in the 1970 film Shaft, Richard Roundtree is proof that breast cancer affects men, too. Roundtree discovered a lump in his right breast in 1993 and received chemotherapy, radiation treatments and a mastectomy. He has acted in a number of TV shows and films, including the 2000 Shaft remake, starring Samuel L. Jackson. Roundtree, 68, is now a breast cancer advocate, working with the advocacy group Susan G. Komen for the Cure to raise men's awareness and encourage early detection. Look for Roundtree in the films Retreat! and This Bitter Earth, out later this year.