Helen Slater, who played the title character in Supergirl, will be appearing on the CW's Smallville. According to Variety, she will be playing the aunt of recently cast Laura Vandervoort's Supergirl.

Slater will make her first appearance on the sixth episode of the new season. Her role on the show comes two weeks after Dean Cain makes his first scheduled appearance.

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Smallville returns this fall on the CW with all new episodes. Check your local listings for date and times.

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