Aaron LaPlante plays as Spear (Voice) in Primal.
Aaron LaPlante is the top #1 member of the cast and appears in 10 episodes.

Thomas James "Tom" Kenny (born July 13, 1962) is an American actor and comedian, known for his long-running-role as SpongeBob SquarePants in the television series of the same name, as well as the live-action character Patchy the Pirate, Gary the Snail and the French narrator based on Jacques Cousteau. His other voice acting roles include the Narrator and Mayor in the Powerpuff Girls, Heffer in Rocko's Modern Life, Dog in CatDog, Ice King in Adventure Time and Spryo in the Spyro the Dragon video game series. Aside from voice acting, Kenny also starred in the short-lived Fox sketch show The Edge and was a cast member of the HBO sketch comedy program Mr. Show, where he worked with Jill Talley, whom he subsequently married. He also hosted Friday Night Videos on NBC for one year in 1983, and Funday Night at the Movies on TCM in 2007.

Tom Kenny plays as Ork-0, RK Units (voice) in Primal.
Tom Kenny is the top #2 member of the cast and appears in 10 episodes.

Jon Olson plays as Krog/Shaman in Primal.
Jon Olson is the top #3 member of the cast and appears in 10 episodes.