In "The 12 Irks of Christmas", Corey Wilder provides the voices for Professor Membrane, Tallest Red, Tallest Purple, and Bid.
T-Zim Airborne voices both Dib and Zim's Computer.
PARANOiD DJ voices both Lard Nar and Tallest Spork.
Release Date Change: The series was originally slated to premiere sometime early August 2021 before getting pushed back to October 2021. When that deadline also passed, the creators released a statement on Twitter acknowledging their failures to meet previous deadlines and promising to only give out a release date if they were 100% certain it would be kept. From then on, the release date was simply stated as "Early 2022" before finally settling on a February 4 release.
In the storyboards for "A Very Small Problem", Red figured out he and Purple had been teleported to Earth by pulling the information from a holographic screen on his wrist. However, the show's artists forgot to include this in the final rendering for the scene.
According to this tweet, part 1 of "A Very Small Problem" was supposed to end with the rain visibly burning Red since water is like acid to Irkens. However, this never made it into the final cut because the creators forgot to insert the smoke animation and sound effects of the water droplets sizzling on Red's skin.
on Twitter acknowledging their failures to meet previous deadlines and promising to only give out a release date if they were 100% certain it would be kept. From then on, the release date was simply stated as "Early 2022" before finally settling on a February 4 release.