As with his film roles, he played villainous roles in those two shows, most notably as a defense attorney and an unethical Journalist in the original Law & Order, and a serial killer in Special Victims Unit. Chinlund also played an American-Indian Casino President and CEO, "Chief Doug Smith" in the fourth-season episode "Christopher" of the hit HBO original series, The Sopranos. In 2009, he made an appearance on Castle in the first-season episode "Home Is Where The Heart Stops". In 2010, he made an appearance on House in the sixth-season episode titled "The Down Low", playing a drug dealer named Eddie.