Visible crew/equipment: When Lister does the log at The Beginning of the episode, a boom mic shadow can be seen on his face throughout the scene. (00:00:40)
Visible crew/equipment: When Lister sneaks in to switch Kryten's head, as the camera follows Lister and goes around past the wall, the shadow of the camera can be seen in the green light. (00:09:20)
Visible crew/equipment: When Rimmer says that Kennedy was a fine man, a boom mic can be seen at the top of the screen. (00:20:22 - 00:21:17)
Answer: It's Queen Victoria, someone any Englishman would recognize, and needed no introduction.