: Often appears in casting credits for the play, frequently portraying roles such as James Potter Sr. , James Potter Jr. , or Cedric Diggory in different international or touring productions.

: Albus and Scorpius believe that saving Cedric Diggory will right a historical wrong.

: A central figure whose death in The Goblet of Fire serves as the primary catalyst for the plot. The play revolves around Albus Potter and Scorpius Malfoy's attempts to use a Time-Turner to save him.

: A character name often associated with the production's casting or minor ensemble roles. In the context of the script, "London" is frequently mentioned as the setting (King's Cross, St. Pancras), but Lawrence is typically a featured ensemble member in various stage productions.

: The characters eventually learn that Cedric’s death, while tragic, was a "spare" moment that maintained the balance of the world they know.