Let's suppose The CW will let you choose three guest stars for The Vampire Diaries, you can pick anyone... who would you choose?

The CW, the Excecutive Producers, Writers, Production Companies, etc. let you choose the next three guest stars, they will create an interesting storyline for the people you choose or will let you create your own, however you want... they don't have to be necessarily on the same episode.
You can pick acotrs, athletes, singers, reality stars, talk show hosts, etc.
Who would be the three people you pick? Any storylines in mind for them?


I'd try to somehow fit:
-Alexander Skarsgard
-Lady Gaga (it works somehow in my mind, don't judge!)
-Ryan Gosling