What actors and actresses appeared in Capture That Capsule - 1961?

The TV episode _Capture That Capsule (1961)_ of the series *Father Knows Best* does not feature any famous movie stars. Rather, Robert Young (as James Anderson), Elinor Donahue (as Betty), Billy Gray (as Bud), Lauren Chapin (as Kathy), and Jane Wyatt (as Margaret Anderson) play their usual character roles during this episode.