Thanks for the heads up.
I've been recording the show, but I didn't realize Diana will be on Sunday's ep because her name isn't mention in my DVR's synopsis for the show:
An American (Philip Carey) finds danger and political intrigue when he searches for his brother (Guy Stockwell) in Tangiers.
OLTL fans will certainly recognize Carey's name because he played Asa Buchanan on the show for years. I wonder if he and Diana will share any scenes? If so, then that will be at least his second connection to DS actors because he played opposite Grayson Hall in the '80s when the Buchanans did battle with the Ralstons.