11 (5) Surprising Celebrity Voices From Your Favorite Cartoons

Meg Ryan voiced Dr. Blight in Captain Planet (1990-1991)









Jay Leno voiced The Crimson Chin in The Fairly OddParents (2001-2011)










Scarlett Johansson voiced Mindy in The SpongeBob SquarePants Movie (2004)










Melissa McCarthy voiced DNAmy in Kim Possible (2002-2005)










Amanda Bynes voiced Taffy in Rugrats (2001-2006)









The rest at the source.