- Dawson Casting: Considering UK laws on child filming and the fact that the pupils are a major part of the show, it's pretty much a given.
- A possible Lampshade Hanging in the third season when a teacher successfully passes herself off as a student for a football match.
- Jenna Coleman, who prior to Doctor Who appeared in a story arc as a teenager named Lindsay James while she herself was in her early 20s, is on record as describing the experience of playing a teenager as "surreal".
- Taken to the extreme with the casting of 28 year old Roxanne Pallett as a 17 year old. 
- Fake Nationality: Francesca Montoya is played by an Indian actress of British extraction, born in India.
- Real-Life Relative: Steph and Dave the security guard are played by actors who were married to each other in real life when they worked on the programme, but divorced in 2012.
- Taken a step further when you realise their eldest son- now of The 1975 fame- appears as an extra in several episodes, particularly during season 4.
- Reality Subtext: A few times.
Trivia / Waterloo Road