| Episode complete credited cast: |
 | Frank Welker | - | Father Time / Bill Clinton / Richard Nixon / Steven Spielberg / Bill Cosby / Jib the Dog (voice) |
 | Tress MacNeille | - | Pepper Mills / World's Oldest Woman / Toast / Histeria Kid Chorus / Jane Fonda (voice) |
 | Luke Ruegger | - | Big Fat Baby (voice) |
 | Laraine Newman | - | Mary Todd Lincoln / Miss Information / Millie Bush / Histeria Kid Chorus (voice) |
 | Maurice LaMarche | - | Abe Lincoln / George Washington / Franklin Roosevelt (voice) |
 | Rob Paulsen | - | Jack the Turkey / Histeria Kid Chorus / Clint Eastwood / Dick Jefferson (voice) |
| Cody Ruegger | - | Loud Kiddington (voice) |
 | Jeff Bennett | - | David Labrador / General Dwight D. Eisenhower / Forest Gump / Christopher Walken / Bob the Cat / Histeria Kid Chorus (voice) (as Jeff Glen Bennett) |
| Nate Ruegger | - | Froggo (voice) (as Nathan Ruegger) |
 | Billy West | - | The Horse (voice) |
 | Cree Summer | - | Aka Pella (voice) |
 | Nora Dunn | - | Barbara S. (voice) |
| Julie Bernstein | - | Histeria Kid Chorus (voice) |
| Elizabeth Lamers | - | Histeria Kid Chorus (voice) |
 | Steven Bernstein | - | Histeria Kid Chorus (voice) (as Steve Bernstein) |
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