The series features guest voice actors for the final season, Tiffany Haddish, Kieran Culkin, Christina Hendricks, Ken Marino, Alfred Molina, Natalie Morales, Jerry O'Connell and Beck Bennett, joining series regulars Dan Stevens, Thomas Middleditch, Mary Mack and Sean Giambrone.
Stevens joined Solar Opposites in season four, when he took over the voice role of Korvo from co-creator Justin Roiland, who was fired from the series after allegations of domestic abuse. The charges were later dismissed due to "insufficient evidence to prove the case beyond a reasonable doubt," according to the Orange County, California, district attorney's office.
The final season will feature the usual chaotic behavior from Korvo, Terry (Middleditch), Jesse (Mack) and Yumyulack (Giambrone), "as the final chapter of an epic drama unfolds for the shrunken humans they've locked within their Wall," according to the season synopsis.
Solar Opposites is produced by 20th Television Animation. Mike McMahan, Josh Bycel and Sydney Ryan are executive producers.
