"David Agnew" is a pen name that was employed on BBC television drama programmes[citation needed] of the 1970s as a scriptwriting credit.
The pseudonym "David Agnew" was most often used when the original freelance scriptwriter was unable to accommodate fundamental changes requested by the production staff, who therefore had to perform a significant rewrite themselves.
Read and producer Graham Williams used the pen name hurriedly to assemble The Invasion of Time in 1978.
A year later, the name concealed the joint work of Douglas Adams, Williams and David Fisher on City of Death.
Writer Roger Marshall quit at the pre-production stage, leaving director Douglas Camfield to revise the script.