Finger Ghost is a Late Night with Conan O'Brien character who debuted on April 6th, 2001 in the sketch New Spring Characters. He is the ghost of a stagehand's severed finger. Terrance Baxter allows him to communicate with Conan and the studio audience.
Finger Ghost: Oooooooooo, I wish to be reattached! I was severed at the knuckle!