"SpongeBob SquarePants". BehindTheVoiceActors.com. Retrieved October 30, 2013. Note: Click on the various characters under "Guest Stars" to reveal a character's voice actor or actress.
Richmond, Ray (January 15, 2004). "Special Report: Animation". The Hollywood Reporter. Archived from the original on March 10, 2008. Retrieved May 22, 2013.
Richmond, Ray (January 15, 2004). "Special Report: Animation". The Hollywood Reporter. Archived from the original on March 10, 2008. Retrieved May 22, 2013.