Winkelman's first television appearance was as 9-year-old Bruce Fuller in the 1955 television series The Great Gildersleeve.
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Winkelman's film roles, some uncredited, were in The Big Knife, Bobby Ware Is Missing, Sincerely Yours, and The Indian Fighter (all 1955), and Ride Out for Revenge (1957).
Michael Jackson | Order of St Michael and St George | Michael Bloomberg | Michael Jordan | Michael Caine | Michael | Michael Palin | Michael Moore | George Michael | Michael Dukakis | Michael W. Smith | Michael Douglas | Michael Bolton | Michael Schumacher | Michael J. Fox | Michael Bublé | Michael Faraday | Michael Moorcock | Michael Kors | Michael Brecker | Michael Bay | Michael Nyman | Michael Phelps | Michael Ondaatje | John Michael Montgomery | St. Michael | Michael Landon | Saint Michael, Barbados | Michael Somare | Live! with Kelly and Michael |
Ben Cooper, Richard Crenna, John Forsythe, Ron Foster, Brad Johnson, Jack Kelly, Robert Loggia, Ida Lupino, Martin Milner, Leslie Nielsen, Mickey Rooney, James Whitmore, Jeffrey Hunter, Tippi Hedren, Telly Savalas, Robert Ryan and Michael Winkelman were among the actors cast on Kraft Suspense Theatre.
The program showcased the talents of actors and actresses such as Joseph Cotten, Michael Landon, Johnny Crawford, Katherine Warren, Lon Chaney Jr., Pamela Baird, Claudette Colbert, Wright King, Strother Martin, Judy Morris, Ahna Capri, John Carradine, Helen Wallace, and Michael Winkelman.
Paul Devereux, John Baker, Christopher Chippindale, Neil Mortimer, George Nash, and Michael Winkelman.