Fred MacMurray Steve Douglas Actor Don Grady Robbie Douglas Actor Stanley Livingston Chip Douglas Actor William Demarest Uncle Charlie O'Casey Actor Barry Livingston Ernie Douglas Actor Tina Cole Katie Miller Douglas Actor Lou Krugman Guest Star Dick Wilson Guest Star Kaye Elhardt Guest Star Jim Henaghan Guest Star Robert Whaley Guest Star Len Hendry Guest Star Edmund L. Hartmann Producer Frederick De Cordova Director