The Flickerer is a spectral invisible jumble of sound waves who inhibits anything that anyone can hear.

He likes to adopt the voices of radio and podcast personas shaping them to his own desire, but craves to take over the minds of those in the physical realm, which he did with Yodalin, but was later trapped inside Casper's phone.

The Flickerer later appeared when he was released by Grizzler and Wally into the Metaverse where he eliminated all vision and pitted those within to cruel mind games.

He was supposedly banished when Lydia, Genesis, Exodus and the Clockmaker broke the fourth wall and blocked them out of the listener's mind, thus eliminating him from known reality.

But he waits in his own domain of noise and soundwaves waiting for the right moment to strike back.