George & Harold in The Loud House: The Batman/TMNT Adventure/Trivia


 * In this film, Jaleel White voices Michelangelo instead of Greg Cipes. This is because Cipes was busy with Teen Titans GO! at the time, and also because Sanderson believed that Cipes made his favorite turtle sound way too immature.
 * White also provides the voices for guest characters Bumblebee/Goldbug and Blitzwing (both from Transformers: Animated), due to Bumper Robinson providing the voice for Clyde at the time. Jaleel's voice for Bumblebee is reminiscent of his voice for Sonic the Hedgehog—by the time he worked on Sonic Underground, along with his voice for Blitzwing, which Sanderson gleefully described as..."Sonic, but if he was some kind of crazy doctor".
 * Jess Harnell provides the voice of Blitzwing's "Hothead" face, while Jaleel voices the "Icy" and "Random" faces.
 * Unlike the main series, Rocksteady is played by David Ogden Stiers, since Fred Tatasciore was, at the time, busy with other projects. This film was his final role before his death, and was subsequently dedicated to his memory, also acting as a tribute to the late, great Daws Butler.
 * Surprisingly, Bebop's voice was provided by Tevin "Powerline" Campbell instead of J.B. Smoove. Sanderson chose this because he (like many who watched A Goofy Movie) is a huge fan of Tevin Campbell's character in the film, Powerline.
 * April is voiced by Lori's former VA, Catherine Taber, instead of Grey Griffin.
 * The people at Nickelodeon decided to hire Derrick J. Wyatt as character designer for the film...mostly because Matt Sanderson didn't like the "Mutant Apocalypse" arc and is still pretty steamed at Ciro—plus, he's a huge fan of Derrick J. Wyatt.
 * Before a fight starts, Harold reassures the others by saying, "After all, I'm SMA-A-A-ARTER than the average psycho clown!", a shout-out to the famous cartoon character Yogi Bear.
 * Matt Sanderson added Bat-Mite to the film because he felt that Batman, Robin, and Batgirl needed a bit of levity to make things more fun...and he's his favorite DC Comics character.
 * Sanderson chose to have Mutagen Man finally be restored to his human form in the film because he felt that he got screwed over by the writers.
 * The film is also dedicated to Elmer "Butch" Hartman, who left Nickelodeon on February 2, 2018, in order to pursue other projects.