Dexter's Laboratory: The Big Sister (1996)

Name: Dexter's Laboratory: The Big Sister
Genre: Animation
Released: 1996-03-10
Duration: 7 min
Cast: Christine Cavanaugh, Kath Soucie, Jeff Bennett, Frank Welker, Allison Moore

When boy genius, Dexter makes experimental cookies, his sister, Dee Dee eats one and turns into a giant.