Scarfman is a mannequin employee at MyMusic. He has a hat, hipster glasses, a mustache and a bunch of scarfs wrapped around him. At first Metal thought he was real and had lunch with him but even after being told he is an inanimate object, treats him as living being or a colleague to be exact.
Indeed, it appears that everybody in MyMusic seem to treat him as a human.
In the new premises, he and Metal are stuck together in a closet, since Metal is thought to be useless. Metal tells Scarfman that staying with him annoying him, even though he values his companionship.