Full name: Dr. Julius No
Allegiance: S.P.E.C.T.R.E (Special Executive for Counter Terrorism, Revenge, Extortion)
Actor: Joseph Wiseman
Dr. No is a brilliant scientist with an implied Napoleon complex, a self-described "unwanted child of a German missionary and a Chinese girl of a good family". He later "became treasurer of the most powerful criminal society in China", in this case, the Tongs. He then "escaped to America with $10,000,000" of Tong gold bullion. He specialized in atomic energy, which cost him both of his hands, which were replaced with crude bionic ones that were made out of either iron or steel. No's metal hands apparently had great strength (he could crush a stone figurine into powder), but were seriously lacking in manual dexterity.
He offered his skills and expertise to the Americans and Soviets, but was rejected. To get revenge, No joined the villainous organization SPECTRE and relocated to his island in Crab Key, Jamaica.
No is first heard speaking to Professor Dent, angry over his failure to kill Bond. He gives Dent a venomous spider.
No is not physically seen until the end of the movie where Bond and Honey Ryder have dinner with No and appears before that when he answers Bond's question about his minnows that look like whales. During that dinner, Bond constantly insult No and his plan. No gets angry and when Bond asks Honey to leave the room, his guards apprehend her. No leaves the dinner table and has Bond put in a cell. No then prepares to shut down another missile.
Unfortunately, Bond escaped captivity and disguised himself as a worker in a hazmat suit. No, mistook him for Chang, another worker. When Bond wrecked havoc by increasing the radiation level of the water, No realized too late that Bond had escaped. The two briefly fought on a sinking platform. Bond managed to climb back up, but No's metal hands weren't able to grab the bars and he was boiled alive in the radioactive coolant.