this is not david yip
David Yip is best remembered for his gritty portrayal of a chinese detective in London's Chinatown in the 1981 series "The Chinese Detective". I have also heard that he played "Veldan" in the Doctor Who story "Destiny of the Daleks", and he also played "Editor #1" in The Professionals episode Discovered in a Graveyard.
Or so I am told.