Jasmine Guy

The Vampires Diaries has cast A Different World actress Jasmine Guy, but she won't play a vampire, a show rep tells TVGuide.com.

Guy, 47, will play the grandmother of Bonnie (Katerina Graham), who has discovered that she comes from a long line of witches.

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Guy also played Roxy Harvey in Bryan Fuller's short-lived series Dead Like Me.

Is Guy too young to play a grandmother?