My Three Sons
Mister X
Season 10, Episode 23 · Aired 1970-03-14
Synopsis
A bearded man of mystery confounds the Douglas family and the authorities alike, while Steve is working on a top priority project at home. Barbara soon identifies him as her former father-in-law.
In the series
This episode is part of My Three Sons (1960–1972) on ABC/CBS.
Widower dad, three boys, and Uncle Charley — domestic sitcom built to last.
Key cast
- Fred MacMurray as Steve Douglas
- William Frawley as Bub O'Casey
- William Demarest as Uncle Charley
- Tim Considine as Mike Douglas
- Don Grady as Robbie Douglas