Bub O'Casey — My Three Sons Character Profile

About Bub O'Casey

The boys' maternal grandfather and live-in housekeeper who appears in the original cast until 1965.

Character Facts

Played by

William Frawley

Appears in

My Three Sons (1960)

Role

Supporting

More characters from My Three Sons

• Steve Douglas (Fred MacMurray)
• Robbie Douglas (Don Grady)
• Mike Douglas (Tim Considine)
• Chip Douglas (Stanley Livingston)
• Ernie Thompson (Barry Livingston)
• Charley O'Casey (William Demarest)
• Barbara (Beverly Garland)
• Dodie Harper Douglas (Dawn Lyn)
• Katie (Tina Cole)
• Priscilla (Jodie Foster)
• Mama Rossini (Naomi Stevens)
• Bill Miller (Yale Summers)