Bob Keeshan was Captain Kangaroo - I didn't know he was Clarabell, too! The things you learn here.
All the clown discussion had me chuckle. Both of my boys despised any human dressed as a tv or cartoon character. We have a photo of my older boy, age 6 at the time, sitting in a restaurant at Disney World; Mickey is standing behind him and the look on my kid's face is: " If I don't make eye contact, maybe it will go away!"