Among the child actors cast as the Beardsley and North children, several went on to greater success, including Tim Matheson (billed here as Tim Matthieson) who went on to play the character Otter in the more adult-oriented comedy "Animal House"; Morgan Brittany (billed here as Suzanne Cupito) played Katherine Wentworth in "Dallas" from 1981 to 1987; Mitch Vogel appeared in "The Reivers" with Steve McQueen for which Vogel received a Golden Globe Best Supporting Actor nomination in 1970; and Tracy Nelson, daughter of actor/musician Ricky Nelson, who eventually starred in the series "Father Dowling Mysteries" beside Tom Bosley, who portrayed the doctor in this movie. Also, Matheson (Mike Beardsley) and future soap-opera actress Jennifer Leak (Colleen North) married in real life in 1968, although they divorced in 1971.