12. Bölüm

William Jackson Harper

Nathaniel (voice)

Demetri Martin

(voice)

Ron Perlman

Fang (voice)

Courtenay Taylor

Crash Test Scientist (voice)

Kari Wahlgren

Penis Cream Scientist (voice)

Parker Deay

(voice)

Ted Danson

Dr. Ray Petit (voice)

Kevin Michael Richardson

Billy (voice)

Joe Chandler

(voice)

Patrick Stewart

Avery Bullock (voice)

Daisuke Suzuki

Toshi Yoshida (voice)

Eddie Kaye Thomas

Barry Robinson (voice)

Curtis Armstrong

Snot Lonstein (voice)

Richard Kind

Al Tuttle (voice)