"Gunsmoke," the legendary Western starring James Arness, ran for 20 years on CBS from 1955 to 1975. That's the astonishing record Wolf is determined to harpoon.
Jeremy Sisto ("Kidnapped," "Six Feet Under") is joining the original "Law & Order" to play the new detective partner of Jesse L. Martin's Det. Ed Green. Alicia Witt ("The Upside of Anger") has been added to "Law & Order: Criminal Intent" for six episodes. And Adam Beach ("Flags of Our Fathers") is the new cast regular on "Law & Order: Special Victims Unit," playing an American Indian detective from Brooklyn.