God Cat is a supporting character of Post-SCrash Session.
According to Enchiridion Marrissa, God Cat was created in an "ectobibliology lab" with speshul powers identical to those of Marrissa Roberts and a few other characters. Her creation immediately followed Wantagruel Vasebreaker's rebellion, as Candacension Pixies needed to strengthen her rule over the Earth. The creation was beneficial to Candacension's rule, but ultimately led to the near extinction of the human race.
GCat appears occasionally in Post-SCrash Session. Despite her affiliation with Candacension as mentioned by Skepness Man, she is generally helpful towards Janet Roberts, allowing her to escape her room after her robrodad locks her inside, and later on saving her life by teleporting her away from exploding mail.
Her fate after the Red Miles is unknown.
- One of the author's notes of Post-SCrash Session attempts to connect GCat and Cato, one of the tributes of the 74th Hunger Games.
- In Post-SCrash Session, Janet mentions Marrissa Roberts as the go-to example of the powers GCat exhibits. However, in Post-SCrash Session (Rectified), for the same purpose, McJuggerNugget refers to Violet Beauregarde instead.