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 Beverly Garland Barbara Harper Douglas Actor Guy Swanson Guest Star Dawn Lyn Dodi Harper Douglas Actor Garth Swanson Guest Star Eleanor Audley Guest Star Betty Lynn Guest Star Naomi Stevens Guest Star John Gallaudet Guest Star Maurice Manson Guest Star Jim Halferty Guest Star Gunnar Swanson Guest Star Andrea Sacino Guest Star Cathleen Cordell Guest Star Brenda Bennett Guest Star Edmund L. Hartmann Producer Frederick De Cordova Director