How could we forget that these stars were on "The Vampire Diaries." For this list, we’ll be looking at the best celebrity appearances on the supernatural drama that completely slipped our minds. Our countdown includes McKenna Grace, Adina Porter, Stephen Amell, and more! Which forgotten guest star has YOU compelled to rewatch the series? Let us know in the comments!

Watch more great guest star videos here:
Top 20 Stars You Forgot Were on Criminal Minds - https://youtu.be/MeQdc-N1ptI
Top 10 Stars You Forgot Were on Charmed - https://youtu.be/fL8PzdDJTTQ
Top 10 Stars You Forgot Were on Sabrina the Teenage Witch - https://youtu.be/oLkBRO7EXNI

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