X is an Algebralian and co-host of BFB and TPOT. They debuted in “Getting Teardrop to Talk” with Four, hosting a competition for a BFDI. After Donut resigned in “This Episode Is About Basketball,” X briefly became main host until Four returned in “Enter the Exit, X appeared in TPOT as a chef with Four (and Clock assisting) from “The Seven Wonders of Goiky” to “Oneirophobe’s Nightmare.” They also temporarily co-hosted in “The Power of Four” when Two fell into depression after Gaty went missing.