Fours

CT-4444, aka Fours, aka 4s, was a member of the Op Clone Training Group. Fours disappeared shortly after the end of The Clone Wars. It is thought that Fours was in contact with Jedi Bob, Sixes, Fives, Sevens, Ones, Twos, Threes, Eights, Nines, CT-7253, and CT-6969. Although Jedi Bob never met Fours in person, Jedi Bob sensed an immense power that Fours could achieve. No one knows what happened to Fours after the 1st Death Star blew up, however, it is theorized Fours had met Nobody, became one with the Force, and tried to use his power to retcon the "Sequel Era".