Joyce Grainger
Background
Joyce Grainger is a nurse at the Park Clinic in England. Her husband is Hugh Grainger. Joyce has a friend named Brenda.
During the events of Dead of Night (1945) played by Judy Kelly
Joyce arrives at Eliot Foley's house ans asks Hugh to pay her cab fair as she doesn't have any money. Dr. Van Straaten still doesn't believe Walter Craig's predictions and when Walter sees him tapping his glasses, he remembers that in his dreams, Dr. Van Straaten breaks his glasses and then the room goes dark, Eliot mentions the death of a man and then his dream turns into a nightmare. Sally O'Hara is the next to tell her story of strange occurrence.
Dr. Van Straaten doesn't believe Sally's story and Joyce tells everyone that when she was a nurse there were times when unexplained things happened. Walter says that things in his dreams sometimes change and that in one instance he hit Sally, but not this time as she will be leaving soon. Mrs. O'Hara arrives at the house and takes her away to go to her godfather Edwin's birthday party. Joan is next to tell her story.
Dr. Van Straaten tells the others that Joan's story is a case of cryptomnesia, the transmissibility of an illusion by one person to another. Walter tells Dr. Van Straaten that he thinks his dream was a warning and he wants to leave. Dr. Van Straaten stops him and asks him to stay. Walter tells Eliot that he is leaving and Eliot tells him a story that happened to some friends of his.
Everyone laughs at Eliot's story. Dr. Van Straaten reminds Walter that the horror soon starts after Eliot mentions a man died, which must be Larry Potter. Mrs. Foley and Joyce then go to make dinner.