Mr. Ling is a supporting antagonist of the 1964 James Bond film Goldfinger. He is a Chinese nuclear fission specialist who is in league with Auric Goldfinger of Auric Enterprises until the events of the film.
He was portrayed by the late Burt Kwouk.
Being an agent of the Red China government, Mr. Ling became involved in Goldfinger's plot called Operation Grand Slam, which involves destroying Fort Knox and its large supply of gold so that Goldfinger's value of his gold will rise for profit. As it turns out, Goldfinger will have his aviator team called the Flying Circus (led by Pussy Galore) to spray nerve gas across the area to kill all of the guards, which will allow Goldfinger's task force (led by Oddjob and Kisch) to break into Fort Knox. As part of the plan, Mr. Ling provides Goldfinger with a nuclear bomb that will make the gold radioactive and useless for 58 years, thus giving the Red China government to profit out from the economic chaos.
During the final phases of Operation Grand Slam, Mr. Ling activates the timer for the bomb before watching Goldfinger locking Bond and the bomb inside the vault. Little did they know that Bond previously seduced Galore into switching the gas with a more harmless one, thus allowing the guards to regain consciousness and fight off against Goldfinger's task force. Upon witnessing this, Goldfinger poses himself as a U.S. Army officer and betrays Mr. Ling by shooting him and several American soldiers to their deaths to cover his escape.
Despite this, Bond was able to defeat Oddjob and allow the American military to disable Mr. Ling's bomb in time, thus foiling Goldfinger's plot for good.