In the world of well-known police procedurals, such as Criminal Minds, Bones and NCIS, the stars of these series often make a name for themselves exclusively through their work as Detective So and So. These shows first introduced viewers to many familiar faces such as Matthew Gray Gubler, Pauley Perette and Emily Deschanel.
Source:https://www.cbr.com/david-boreanaz-buffy-procedurals/