About Dexter's Laboratory: The Big Sister
When boy genius, Dexter makes experimental cookies, his sister, Dee Dee eats one and turns into a giant.
Full Cast of Dexter's Laboratory: The Big Sister
Frank Welker
plays President / General / Guy / Man #2 / Einstein (voice)
Kath Soucie
plays Mom / Ms. Physics (voice)
Jeff Bennett
plays Professor / Cop / Anchor Man / Man #1 (voice)
Crew of Dexter's Laboratory: The Big Sister