A group of unlikely allies are assembled to go on an expedition deep within the Amazon forest in search of new discoveries.
| Actor | Role |
|---|---|
 Peter McCauleyProfessor Challenger | Professor Challenger |
 William deVryNed Malone | Ned Malone |
 William SnowLord John Roxton | Lord John Roxton |
 Michael SinelnikoffSummerlee | Summerlee |
 Rachel BlakelyMarguerite Krux | Marguerite Krux |
 Jennifer O'DellVeronica | Veronica |
 Laura VazquezAssai | Assai |
 Robert ColebyWilliam Maple-White | William Maple-White |
 Brad McMurrayActor | Actor |
 George HenareChief Jacoba | Chief Jacoba |
 Jeff PrewettSlaver | Slaver |
 Lani John TupuRiver Guide | River Guide |
 Damien GarveyUgo | Ugo |