A widower and aeronautical engineer named Steven Douglas raises three sons with the help of his father-in-law, and later the boys' great-uncle. An adopted son, a stepdaughter, wives, and another generation of sons join the loving family in later seasons.

Fred MacMurray

Steve Douglas

Don Grady

Robbie Douglas

Barry Livingston

Ernie Thompson

Stanley Livingston

Chip Douglas

William Demarest

Charley O'Casey

Beverly Garland

Barbara

👤

Tina Cole

Katie

Dawn Lyn

Dodie Harper Douglas

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