Clarissa Explains It All

Melissa Joan Hart Clarissa Darling

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Jason Zimbler Ferguson Darling

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Elizabeth Hess Janet Darling

Joe O'Connor Marshall Darling

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Sean O'Neal Sam Anders

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David Eck Clifford Spleenhurfer

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Nicole Leach Olivia DuPris

Heather MacRae Mafalda

Shannon Woodward Missy

David Singletary Michael (uncredited)

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Sara Burkhardt Hillary

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Susan Greenhill Debbie