Don Richardson directed television and theatrical productions. At the end of his career, he became a respected acting teacher whose book Acting Without Agony: An Alternative to the Method has been used worldwide. Famous Richardson students include Anne Bancroft, Grace Kelly, John Cassavetes, and Zero Mostel. His television credits run the gamut from Bonanza to Lost in Space to One Day at a Time. As an instructor Richardson taught at Barnard College and at both the East and West coast campuses of the American Academy of Dramatic Arts. He was awarded a professorship at Tel Aviv University in Israel. Richardson continued teaching after retirement, holding workshops for directors and actors through U.C.L.A.