Eddie Deezen is an American character actor and comedian, best known for his bit parts as nerd characters in 1970s and 1980s films such as Grease, 1941, and WarGames, as well as for larger and starring roles in a number of independent cult films, including Surf II: The End of the Trilogy and I Wanna Hold Your Hand. As a voice actor, he is easily recognizable for his distinctively high-pitched and nasal voice, most notably used for the characters of Mandark in Dexter's Laboratory (starring Candi Milo, Jeff Bennett, and Kath Soucie), and Ned in Kim Possible (starring Will Friedle).