Trivia / Ben 10/Generator Rex: Heroes United

• Acting for Two: Grey Delisle as Holiday, Dianne Farah, and a random woman, John DiMaggio as Bobo and Rath, Yuri Lowenthal as Ben and Upgrade, and Dee Bradley Baker as Humungousaur, Diamondhead, Lodestar, Big Chill, and Upchuck.
• Approval of God: Derrick Wyatt, art director for Ben 10: Omniverse, generally held low opinions of both Ben 10: Ultimate Alien and Generator Rex. Yet he admitted the crossover was "better than expected," calling it "fun."
• What Could Have Been: Gwen and Kevin were considered for an appearance, but “they didn’t have room for everyone”.
• Word of God: Duncan Roleau confirmed that Ben not calling out his alien’s names was an oversight rather than a deliberate choice,