Stasis Leak - S2-E4
Continuity mistake: When future Lister is making Lister and Cat leave the hotel room, Lister begins talking to future Lister about living his life. Future Lister is standing beside the door in one shot, but has his head suddenly resting on the door in the next shot. (00:26:25)
Answer: It's Queen Victoria, someone any Englishman would recognize, and needed no introduction.