American film and television actor perhaps best known for his role in the film Sounder (1972).

Winfield attended high school in Los Angeles, where he first began acting. After attending several colleges, he left the University of California at Los Angeles just six credits short of a bachelor's degree. He then worked as a contract player at Columbia Pictures before taking the role of Diahann Carroll's boyfriend in the television sitcom Julia (1968–71). In the film Sounder, Winfield played a sharecropper struggling to take care of his family. His other roles included those of baseball player Roy Campanella (Campanella, Roy) in the TV film It's Good to Be Alive (1974), the Rev. Martin Luther King, Jr. (King, Martin Luther, Jr.), in the TV miniseries King (1978), and Supreme Court Justice Thurgood Marshall (Marshall, Thurgood) in the TV film Strange Justice (1999). Winfield's performance as a federal judge in a guest appearance on the TV series Picket Fences (1992–96; Winfield appeared in two episodes, 1994) won him an Emmy Award in 1995.