I attempted to list people who'd be interesting to talk to and hear talk as opposed to just people you want to meet and get a selfie with. This is the list I came up with:
Anthony Head
Brad Dourif
Sam Raimi
Seth Rogen
Eli Roth
Jack Black
Sophie Aldred
Warwick Davis
Mark Williams
Daniel Radcliffe
Maggie Smith
Karen Gillan
Edgar Wright
John Leeson
Julianne Moore
Keith-Lee Castle
Jennifer Lawrence
Mark Gatiss
Joss Whedon
Peter Capaldi
Sophie Aldred
My list would be quite a bit different if it were just people I want to meet. I feel it would be nice to get disabled actors