Peter McCauley as Professor Challenger

William deVry as Ned Malone

William Snow as Lord John Roxton

Michael Sinelnikoff as Summerlee

Rachel Blakely as Marguerite Krux

Jennifer O'Dell as Veronica

Laura Vazquez as Assai

Robert Coleby as William Maple-White

Brad McMurray as Actor

George Henare as Chief Jacoba

Jeff Prewett as Slaver

Lani John Tupu as River Guide

Damien Garvey as Ugo