Credit: Will & Grace: Chris Haston

Memorable ”Will & Grace” guest stars: Cher

Cher appeared twice on the show — once in 2000, when Jack mistook her for a drag-queen Cher impersonator, and again in a more flattering appearance in 2002’s season 4 finale. In the latter episode, Jack contemplates quitting showbiz until Cher appears to him in a dream sequence set in heaven — a dream that climaxes with a musical number performed by the star and some hunky, nearly nude angels. ”You’re hawking your album during my dream!” complains Jack. Replies Cher, ”Somebody’s gotta pay for the fog and the dancing fairies.”