Jelle, that's quite an impressive list you've got there, and I want to thank you for the lovely walk down memory lane. I have to admit I have no recollection of Cynthia from Byron's show, but it's amazing even with my crummy memory, that I remember all the others. Just proves this show can seep into your very soul even when you're mocking it.
As for who I'd like to see come back, that would have to be Charlie from Trista's season. I loved him and was so na´ve about the show at the time, I was totally bowled over and literally gasped when Trista added the "but" to the end of her speech to him. As much as I'd love a show centered around him, I want to believe that Charlie has moved on and is so successfull he'd give a "pffffft" to the producers if they approached him now.