She first joined the soap in 1998 but her character has now met a grisly end.
The presenter said he "went a little nuts" after appearing on the ITV competition, but not as a "direct result" of the show.
"I don't know why they're so mean to a fellow human being," Olivia Colman said of the media's treatment of the royal couple.
The ex EastEnders's star originally thought the ghost was named Dennis but psychic Derek Acorah stepped in to set things straight.
Kelsey Grammer said the moment made him realise he was "done" with Camille, with the pair eventually divorcing in 2011.
The presenter was formerly engaged to skateboarded Jesse Jenkins before going on to marry Jesse Wood, son of The Rolling Stone's Ronnie Wood.
It comes after the Prime Minister appeared to place his poppy wreath the wrong way round at the Cenotaph on Sunday.