Louis Winthrope III

Louis Winthrope III is the main protagonist of the 1983 comedy film Trading Places. He is Harvard educated man who grow up in wealthy environment. He was the managing director for the successful commodities brokerage, Duke & Duke, until his bosses, brothers, Mortimer and Randolph Duke, ruined his life for a science experiment about Nature VS Nurture. Louis is portrayed by Dan Aykroyd, who also portrayed Ray Stantz in the Ghousters films.

Biography
Around Christmas, Louis arrived for work at Duke & Duke, where he was employed the managing director, help his bosses, Mortimer and Randolph Duke, make an extra $347,000, with his correct hunch about pork bellies going up. After being commended by the Dukes, he tells them, he will meet them at The Heritage Club. Once meeting Mortimer and Randolph at the Heritage Club, he gives them he gives the payroll checks for them to sign, but also asks the brothers about a check for $50,000 for someone named Clearance Beeks, whom does not for Duke & Duke. The Dukes tell him that it is top-secret project for research, and Louis believes, then he prepares the Heritage Club with the checks, except the one for Beeks which the Dukes hold on to. After walking out the club, Louis bumps into a poor con artist, Billy Ray Valentine, who he falsely accuses of trying to rob him. After calling the police to help him, they eventually catch Billy Ray, which everyone including the Duke brothers witness. Mortimer then congratulates Louis for this, then Louis tells the police officers that he will be pressing full charges at Billy Ray, before they take him away. Later that night while having dinner with fiancé the Dukes' grandniece, Penelope, tells her about his encounter with Billy Ray.