He contributed numerous scripts for the Doctor Who television series between 1971 and 1979 including:
- The Claws of Axos (1971)
- The Mutants (1972)
- The Three Doctors (1973)
- The Sontaran Experiment (1975)
- The Hand of Fear (1976)
- The Invisible Enemy (1977)
- Underworld (1978)
- The Armageddon Factor (1979)
For all of these, Martin collaborated with Bob Baker. Together they were nicknamed "the Bristol Boys" by the Doctor Who production teams with whom they worked.
Baker and Martin's most notable contributions to the Doctor Who mythos were probably the robot dog K9 (created for The Invisible Enemy) and the renegade Time Lord Omega (created for Doctor Who's tenth anniversary story, The Three Doctors).
In 1980, Dave Martin wrote all four books in The Adventures of K9 series. In 1986, he wrote two Find Your Fate novels, Search for the Doctor and Garden of Evil. All six books were written as "David Martin".
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