I think Jon’s got some plugs holding the front in place and also filling in the back.

His teeth are capped

I think that the camera has always been Jon’s friend. That with some professional makeup goes a long way for him. I bet in person he doesn't look like that.

Richie - Botox

Tico – Nothing

Dave – Nothing

I think Tico looks the oldest for his age. He’s only 59 but looks about 65