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Dennis is mistaken for a brain child.
Adam Wylie
Dennis Mitchell (voice)
Jeannie Elias
Margaret Wade / Peebee Kappa (voice)
June Foray
Martha Wilson (voice)
Dan Gilvezan
Henry Mitchell / Ruff (voice)
Katie Leigh
Gina Gillotti / Joey McDonald (voice)
Anna Mathias
Alice Mitchell (voice)
Roger Rose
(voice)
