The fourth season of The Haunted House animated television series, titled The Haunted House: Ghost Ball Z (), was produced by Studio BAZOOKA and STUDIO EEK. The first part titled The Haunted House: Ghost Ball Z: The Dark Exorcist () aired on Tooniverse in South Korea from September 16 to December 16, 2021, at 8 p.m. KST. The second part is titled The Haunted House: Ghost Ball Z: Guido Exorcist (), which aired from April 28 to July 28, 2022.
This season contains two musical themes: "Time of Destiny" by Yoon Do-hyun is used as an opening theme and "U&I" by DreamNote is used as an ending theme.
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