Christopher Knight doesn’t sound that enthusiastic about being a child actor, even though he benefited from the “wholesome environment” on the Brady Bunch set, he said this week on the I Choose Me with Jennie Garth podcast. It’s not that being gainfully employed as Peter Brady was so bad, but “isn’t that your parents’ job to work, not you?”

One reason Knight had to work in the first place was because his actor dad was having trouble landing roles, he explained. With theater jobs in scarce supply, Knight’s father found an agent for Christopher and his older brother, Garth. To everyone’s surprise (because Garth was the outgoing one), Christopher was the one who booked work, including his role on Brady Bunch.

It was a good thing that young Knight delivered a regular paycheck since his home life was “chaotic and not abundant.” How bad was it?...