During a game session you’ll most likely improvise NPCs, but the important NPC’s can be prepared beforehand. These NPCs should play a main or key role in the adventure or story, not a side character. This however does not mean they cannot evolve to important NPCs because of repeated player interactions.

While prepare to improvise NPCs these are the must-haves

Reference

E. Schea, M. (2018). Sly flourish’s return of the lazy dungeon master. Sly flourish shop

Highlights or timestamps

Return of the Lazy Dungeon Master Highlights

  • Most GMs both prepare NPCs ahead of time and improvise NPCs during the game.

— ^b6a22d from Return of the Lazy Dungeon Master highlights

  • The NPCs you take the time to prepare ahead of your game should usually have some key part to play in the adventure.

— ^d23aa2 from Return of the Lazy Dungeon Master highlights

  • You can focus on just the notes you need to run a particular NPC at the table. That might be nothing more than the NPCs name, their connection to the story and a character archetype to help you roleplay.

— ^646617 from Return of the Lazy Dungeon Master highlights