Zeitgeist

Zeitgeist also known as Captain Disillusion or Fake Captain Disillusion is an antagonist in the webseries Captain Disillusion. He is played by Alan Melikdjanian. Zeitgeist is a spirit/demon that spreads misinformation and fear-mongering to trick others, persumably for his own gain. He clashed with the Captain after impersonating him and trying to trick the latter's naturally skeptical audience.

Impersonating the Captain
Zeitgeist imprisoned the Captain in a cell and impersonated him in a video. He claimed to debunk real events, trying to trick others. Over time the black drips on his face started to melt making long lines on his face. His appearence changed and the room he was in started to fall apart. Eventually the Captain broke free and challenged Zeitgeist to a fight, but the latter escaped by turning to dust.

Appearance
Zeitgeist looks like a corrupted Captain Disillusion. He has a tracksuit consisting of a purple jacket, light gray sweatpants, dark shoes and a black T-shirt. The bottom of his face is silver chrome and the top half is skin colored. They are separated by a black line which is melting, creating black lines across his face. Zeigeist's hair also has a center part, as opposed to CD's natural curls.

Captain Disillusion
Zeitgeist lacks any motivation or specific goals other than tricking people, possibly for his own gain. He doesn't seem to want to bother with the Captain himself, only interested in his skeptical audience. Once his trickery is abruptly stopped, he leaves instead of trying to put up a fight, showing a lack of any interest.