The Dirty Dozen
Excluding Jones and Dern, the Commando Elite are voiced by cast members from the 1967 film "The Dirty Dozen". Dern replaced "The Dirty Dozen" actor Richard Jaeckel, who died before shooting began. Excluding Langella and Cummings, the Gorgonites are voiced by cast members from the 1984 film "This Is Spinal Tap".