Dr Dave Greenwalt (Colin Stinton)
Dr Dave Greenwalt played by Colin Stinton
Starred In Tomorrow Never Dies (1997)
After acquiring the GPS encoder, Bond travels to an US Airforce base in the South China Sea. He meets Jack Wade who introduces him to Dr Dave Greenwalt. Greenwalt uses a GPS calibration unit and discovers that Bond's encoder has been tampered with, meaning the Devonshire was slowly sent off course leading to its fateful sinking. Just as Bond is about to perform his HALO jump, Dr Greenwalt realises that where Bond is diving is actually classed as belonging to Vietnam, something that causes some alarm amongst Wade and the US Marine present.
Dr Dave Greenwalt is the United States Airforce expert on the Global Positing System. A friendly and helpful character, Greenwalt is excited by Bond bringing the GPS encoder and assists Bond in anyway he can. Little else is learnt about the character due to his limited on-screen time. §