Gordon Gekko is the main antagonist of the 1987 film Wall Street and the antihero of the 2010 film Wall Street: Money Never Sleeps, both by director Oliver Stone. Gekko, a fictional character, was portrayed by actor Michael Douglas, whose performance in the first film won him an Oscar for Best Actor.
Additional meaning of Gordon Gekko:
Gekko has become a symbol in popular culture for unrestrained greed (with the signature line, "Greed, for lack of a better word, is good"), often in fields outside corporate finance.
Notwithstanding the popular cultural significance of the character (and the wide repetition of this particular quote), Gekko never actually uttered the words "Greed is Good" in the original Wall Street film. The full text of the quote is below:
Greed, for lack of a better word, is good. Greed is right. Greed works. Greed clarifies, cuts through, and captures, the essence of the evolutionary spirit. Greed, in all of its forms; greed for life, for money, for love, knowledge, has marked the upward surge of mankind and greed, you mark my words, will not only save Teldar Paper, but that other malfunctioning corporation called the U.S.A.