Hudson was cast as Warden Leo Glynn on HBO's series "Oz". On "Oz", his son Ernie Hudson Jr. co-starred with him as Muslim inmate Hamid Khan. Hudson also appears as the character Munro in "Congo" (1995) and as Police Sergeant Albrecht in "The Crow" (1994). He switched gears when he played a preacher opening the eyes of a small town's prejudice in the 1950s in "Stranger in the Kingdom". He is also known for his role as Harry McDonald, the FBI superior of Sandra Bullock's character in the feature film "Miss Congeniality" (2000). He appears in the "Stargate SG-1" episode "Ethon" as Pernaux. Hudson also appeared as Reggie in the film "The Basketball Diaries" (1995). In 2006, he appeared in the television movie "The Ron Clark Story" as Principal Turner. In 2008, he began a recurring role as Dr. Fields on "The Secret Life of the American Teenager". Hudson also had a recurring role on the final season of "Law & Order" as Lt. Anita Van Buren's boyfriend and then fiancé.