Father Maxi is a Roman Catholic priest who serves as the mouthpiece for South Park's Christian community. He runs the South Park church in South Park.
His unwavering belief that everyone is going to Hell goes so far as that he bluntly claimed that Timmy Burch would go to Hell, since Timmy cannot confess his sins, as he cannot speak anything fluently.
However, at times Father Maxi can come off as less of a fundamentalist, as in "Red Hot Catholic Love" in which he grows concerned by the massive amounts of sexual abuse cases regarding priest and children and is horrified to discover that sex with children is apparently part of Vatican Law. When he discovers this, he makes several attempts to change the "Holy Doctrine" so that sex with children is wrong, and suggesting that priests be allowed to have sex with women.
His desire to change Vatican Law and be allowed to sleep with women may have something to do with the fact that he has apparently had sex with several women in South Park, including Liane Cartman.
There are also times where he seems to know very little about religion; once, when seeing Jesus Christ, he exclaimed "Hey, it's that guy from the public access show!" However, considering that Jesus actually hosts a cable access show in South Park, this is most likely done for irony.
The top is his hair is darker in color than the sides suggesting that he wears a toupee. He was voiced by the co-South park creator, Matt Stone who also voices Kyle Broflovski, Kenny McCormick, Stuart McCormick, Gerald Broflovski, Terrance, Ugly Bob, Pip Pirrup, Tweek Tweak, Craig Tucker, Jimbo Kern, Big Gay Al, Jesus Christ, Mitch Murphy, and Butters Stotch.