Carlos Alazraqui

Rocko / Spunky / Gordon / Mitch (voice)

Tom Kenny

Heffer Wolfe / Dad Elf / Additional Voices (voice)

Charlie Adler

Ed Bighead / Bev Bighead / George Wolfe / Grandpa Wolfe (voice)

Linda Wallem

Dr. Hutchinson / Virginia Wolfe / Cindy Wolfe (voice)

Mr. Lawrence

Filburt Turtle / Fruitcake Man (voice)