15 Storeys High/Trivia
- Hey, It's That Guy!: Peter Serafinowicz (Shaun of the Dead, Look Around You) as the recurring shady "director" neighbor character.
- Mark Lamarr ("Never Mind the Buzzcocks", "Shooting Stars") as a human statue who has had a "shite" day. Lamarr co-wrote the series, but under the name Mark Jones.