Well so far we only know two of the guests, but they are two good'uns!
There's a bit of an Irish acting legend on The Late Late Show on Friday night as Mr Gabriel Byrne himself joins Ryan for the chats on what he's been up to lately.
As well as himself, This Morning presenter Christine Bleakley will chat to Ryan about her move to New York with fiancé Frank Lampard and her adventure travelling along the Wild Atlantic Way. She always seems like a nice lady.
They still have another two hours to fill after this so we will keep you updated on any more additions we hear about.