More lost guests?!
Elizabeth Mitchell please!! I love her and she's in a lot, e.g. Once upon a time, LOST, revolution, etc.
Also maybe Rebecca Mader? she's in lost and OUAT too!
Also some other good ones would be,
David Lyons
Josh Holloway
Austin Abrams
Lana Parrilla
Ian Somerhalder
Maggie Grace
Etc!