Conversation so far:
who are the main characters on criminal minds
Criminal Mind's original cast consisted of seven star-billed characters: Jason Gideon, Aaron Hotchner, Elle Greenaway, Derek Morgan, Spencer Reid, Jennifer Jareau, and Penelope Garcia.
who is the creator of criminal minds
The creator of criminal minds is Jeff Davis

Question: what's the premise
Self-contained rewrite: what's the premise of criminal minds