an intellectual (who is bald?)

a slang term, sometimes used for a man who is bald, but it may also denote an intellectual, usually used in a derogatory way by anti-intellectuals

In the slang of the United States, egghead was an anti-intellectual epithet, directed at people considered too out-of-touch with ordinary people and too lacking in realism, common sense, virility, etc. on account of their intellectual interests. The term egghead reached its peak currency during the 1950s, when vice-presidential candidate Richard Nixon used it against Democrat Presidential nominee Adlai Stevenson. It is now rarely used, having been replaced in U.S. politics by other anti-intellectual epithets such as liberal elite, and socially by terms such as nerd and geek.

Egghead was a villain created for the 1960s Batman television series. Played by horror film mainstay Vincent Price, 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-celent".

Egghead is a fictional Marvel Comics' villain who first appeared in Tales to Astonish #38. He is also the arch-nemesis of super-hero Henry Pym.