For the second in our Darby run, and his actual film role (I think... it sounds like he was around in the 80's, but maybe just as an extra?), we have a re-broadcast from our first Robert Longstreet series.
This poor dude gets his pee pee cut off when he's a baby. He is pretty asexual, but loves hearing about his horny friend's escapades. Eventually, he goes to meet up with a doctor who can attach a new dong. That doctor? MARK DARBY ROBINSON!