Corey Burton
General Knowledge (voice)
Scott Curtis
Bobby (voice)
George Wendt
Stomach (voice)
Jon Lovitz
Right Brain (voice)
Dana Carvey
Right Ventricle (voice)
Bobcat Goldthwait
Adrenal Gland (voice)
Charles Grodin
Left Brain (voice)
Kevin Nealon
Left Ventricle (voice)
