|Warren Beatty||Berry-Berry Willart|
|Eva Marie Saint||Echo O'Brien|
|Brandon de Wilde||Clinton Willart|
|Karl Malden||Ralph Willart|
|Angela Lansbury||Annabell Willart|
Ralph Willart and his wife Annabell are constantly at odds over what to do with their son, Berry-Berry . While Annabell treats him like a saint, Ralph is more keen to his boy's womanizing ways. Berry-Berry's younger brother Clint idolizes him despite what his father says, but when Berry-Berry develops a relationship with family friend Echo O'Brien, Clint discovers just how shallow his older brother is.