Calvin Coolidge "Cal" Hoyt Woody's younger brother, a recovering alcoholic and drug addict who is frequently in trouble. He is first seen in the "Sunset Division" spinoff episode (2x20). Cal is reintroduced mid-way into season 4, with a backstory that paints him as a very charming, but equally troubled, young man with a history of drug abuse, among other things, frequently saddling Woody with the responsibility. Cal not-so-coincidentally shows up in "Skin and Bone" (4x16), just as a mass grave full of mobsters is uncovered.