One of his obits ran a quote from a recent interview he did with Bill O'Reilly in which he expressed his disappointment with his lack of a career after The Addams Family.This kind of come-down must be devastating for child actors, and the reason many of them have emotional and substance abuse problems. After Pugsley, he was probably too young to realize he wasn't any kind of star, and that his "career" held little promise - especially for a kid that wasn't particularly wholesome or all-American looking, to put it politely.
One can only hope that he didn't have a sad life because of it. Jon Provost (Lassie) is an example of a child actor who seemed to have excelled in life without acting.
And speaking of which - I believe there's a family connection between Ken, and Rudd Weatherwax, the man who trained all the Lassies back in the day.
