Umlaut is a minor antagonist from the arcade game Carnevil. He is the mascot of the carnival of horrors owned by Ludwig Von Tokkentakker, its ringmaster. In-game he narrates intros of every level and appears as a minor enemy in the final confrontation against Ludwig.

Umlaut appears as a wisecracking disembodied floating demonic head with the features of a jester wearing a purple and yellow hat and collar, his skin being painted white with red lips.

Even while manifested as an ally for Ludwig not much is known of his abilities or forms of attack other than being able to attack using sharp teeth and poofing in and out of existence.