NPC you'll remember because of the one secret they carry

Your players will forget another generic innkeeper, so give them one worth remembering. Tell it the setting and the role, and it generates a name, a one-line description, a vocal quirk, the secret they are hiding, and one way the party might trip over the truth. The secret is what makes the character stick.

NPC for a [setting] campaign. Role: [innkeeper / merchant / noble / etc]. Generate name, one-line description, vocal quirk, secret they are hiding, and one way players might trip over the truth.