| Person | Type | Job | Role(s) |
|---|---|---|---|
 Barry Bruce | Crew | Visual Effects | Animation, Character Designer |
Billy Scream | Crew | Sound | Original Music Composer |
 Craig Bartlett | Crew | Visual Effects | Animation |
Joan C. Gratz | Crew | Art | Set Designer |
Kelley Baker | Crew | Editing | Negative Cutter, Editor, Sound Effects Editor, Sound Effects Designer |
 Mark Gustafson | Crew | Visual Effects | Animation |
 Mark Twain | Crew | Writing | Story |
 Susan Shadburne | Crew | Writing | Writer |
Tom Gasek | Crew | Visual Effects | Animation |
 Will Vinton | Crew | Directing | Director, Animation |
Bruce McKean | Crew | Visual Effects | Animation |
Billy Scream | Cast | The Indexivator (voice) | |
 Dal McKennon | Cast | Actor | Jim Smiley (voice) |
Gary Krug | Cast | Actor | Huck Finn (voice) |
 James Whitmore | Cast | Actor | Mark Twain (voice) |
John Morrison | Cast | Actor | Adam (voice) |
 Michele Mariana | Cast | Actress | Becky Thatcher (voice) |
Tom Gasek | Cast | Homer (voice) | |
Will Vinton | Cast | Actor | Dan'l Webster (voice) |
Carol Edelman | Cast | Eve (voice) | |
Chris Ritchie | Cast | Actor | Tom Sawyer (voice) |
Wilbur Vincent | Cast | The Mysterious Stranger (voice) | |
Herb Smith | Cast | The Stranger (voice) | |
| Person | Type | Job | Role(s) |
