There are so many Generator Rex characters, that we had to divide them all up into six sections ,With the exception of a few characters they have their own pages.
- ProvidenceClick to Expand Rex, Agent Six, Bobo Haha, Noah Nixon, Doctor Holiday, White Knight, César Salazar, Captain Calan
- The ConsortiumClick to Expand Black Knight, Roswell, Reddick, Sir Anthony Haden-Scott, Xanubian, Vostok
- The PackClick to Expand Van Kleiss, Biowulf, Breach, Skalamander, Nightshadow
- The SixClick to Expand One, Dos, Trey, IV, Five
- Rex's Old GangClick to Expand Circe, Tuck, Skwydd, Cricket
- OthersClick to Expand ZAG-RS, No-Face, Hunter Cain, Claire Bowman and Annie, Kenwyn Jones, Rombauer and Lansky, Valentina, Diane Farrah, Gatlocke, Valve, Branden Moses, Quarry, Rand, John Scarecrow, Alpha, Fitzy Feakins, Sebastian