Egghead was a villain created for the 1960s Batman television series. The character was identifiable by his pale bald head and white and yellow suit. He believed himself to be "the world's smartest criminal," and his crimes would usually have an egg-motif to them as well as including egg puns in his speech where appropriate such as "egg-zactly" and "egg-cellent." Additionally, he would use a wide assortment of egg-shaped weapons, such as laughing gas eggs and tear gas eggs (laid by chickens on a diet of onions). In the comic books, Egghead was eventually deemed insane and sentenced to Arkham Asylum. The asylum's new administrator decided to see what made Batman tick by exposing him to Egghead and a number of liberated inmates, an incident which led to question of his own sanity in the process.