During the time Cusick was working on Doctor Who, he was developing an interest in photography and brought his camera with him while he was working. During camera rehearsals of all bar one of the stories he worked on, he took a great many behind-the-scenes photographs; the sole exception being The Edge of Destruction.
Cusick's pictures still exist today as a fascinating record of Doctor Who behind the scenes in the 1960s and have appeared in such publications as Doctor Who Magazine.
A large selection of Cusick's Doctor Who photographs, many of which have never before seen print, can be found in The Raymond P Cusick Signature Collection, published by Telos Publishing Ltd. in 2013.
- The Daleks (with Jeremy Davies)
- The Edge of Destruction
- The Keys of Marinus
- The Sensorites
- Planet of Giants
- The Rescue
- The Romans
- The Chase (with John Wood)
- Mission to the Unknown (with Richard Hunt)
- The Daleks' Master Plan (with Barry Newbery)