William "Billy" Cook (October 13, 1928, Menlo Park, New Jersey – June 19, 1981, Kennebunkport, Maine) was an American actor best known for his work as a child.
Cook's early acting experience came in plays directed by his mother.
In films, he played the young version of characters acted by Ray Milland in Men with Wings (1938) and Beau Geste (1939).