I think he plays some kind of a cop or quasi-father figure to the little girl, I can't remember. It's been a while.
Incidentally, it is difficult, it not impossible, to find the original, complete version of this film. We have a grainy DVR burned for us from a friend who was a film freak, and it is purportedly complete, or at least the most complete version available. Since then, we got the Blu-ray from Network - which may or may not work with most US players - and it is apparently the most complete commercially available version. I have not yet carefully compared the two, but that is on my to-do list.
I always remember Jan Murray from Hollywood Squares, with the hippy beads and medallions in his chest hair. Even as a little kid, I knew instinctively that there was something terribly wrong about this.