Well I'm going to age myself but here goes:
Bobby Sherman
Donnie Osmond
Davey Jones (of the Monkees)
Peter Noone (from Herman's Hermits, they were at DW during F&G and I was so excited I was going to get to go see him, kids wanted to go look at DVC and wouldn't you know it, 2 hours later and I've missed them)
Elvis
Tom Selleck
Sean Connery